Facebook founder Mark Zuckerberg revealed to have landed $2.3 billion stock windfall still a simple guy

Low key: Zuckerberg has been enjoying a low key holiday in Kauai with his Harvard-educated doctor wife on their latest trip to Hawaii, where they are rumoured to be on a reconnaissance trip for real estate on the island

While Mark Zuckerberg continues to enjoy his budget holiday in Hawaii, it has been revealed that the Facebook CEO is even richer than previously known after he gained $2.3 billion from exercising 60 million stock options just before the online social networking leader's initial public offering last year.

The windfall detailed in regulatory documents filed Friday also saddled Zuckerberg, 28, with a massive $1.1 billion tax bill. He raised the money to pay it by selling 30.2 million Facebook shares for $38 apiece in the IPO.

Facebook's stock hasn't closed above $38 since the IPO was completed last May. The shares gained 71 cents Friday to close at $26.85.

The 29 percent decline from Facebook's IPO price has cost Zuckerberg nearly $7 billion on paper, based on the 609.5 million shares of company stock that he owned as of March 31, according to the regulatory filing. His current stake is still worth $16.4 billion.

Zuckerberg, who started Facebook in his Harvard University dorm room in 2004, has indicated he has no immediate plans to sell more stock.

                                      Stroll: Zuckerberg and his wife laughed as they passed Shave Ice Paradise - an Obama favorite

Meanwhile the famously prudent billionaire is currently enjoying a no-frills holiday in Kauai with his Harvard-educated doctor wife on their latest trip to Hawaii, where they are rumoured to be on a reconnaissance trip for real estate on the island.

But despite being worth $13.3billion, Zuckerberg has been at pains to focus on the simple things in life rather than indulging in lavish dinners and extravagant outings.

Facebook founder to visit Nigeria in May

Mark Zuckerberg

The founder of Facebook, a social networking website, Mr Mark Zuckerberg, is scheduled to visit Akwa Ibom State in May this year as one of the guest speakers at a youth economic summit organised by the Niger Delta Young Professionals.

The Chairman of Niger Delta Young Professionals, Mr Moses Siasia, dropped this hint on Thursday, when he paid a courtesy visit on the state governor, Chief Godswill Akpabio, at the Governor’s Office, Uyo.

Siasia, who is currently attending a two-day retreat in the state, used the occasion to invite Akpabio as a special guest of honour to the summit billed for Uyo, the state capital, between May 28 and 29.

He said the summit is the coming together of young professionals in the Niger Delta to promote entrepreneurship, looking at economic challenges in the states and creating employment for the youths.

The chairman explained that the Niger Delta Young Professionals is made up of young professionals from different backgrounds, tribes and states coming together to tackle the challenges and bring about the desired change in the Niger Delta states.

Siasa further commended Akpabio for transforming the state through infrastructure: good road network, health and education sector.

Facebook's message charge shows how to make money out of desperate fans

One of Facebook's strangest revenue-building schemes of recent times is its new decision to charge civilians to send messages to celebrities. Messaging Tom Daley, for instance, will cost nearly £11. Miranda Hart, meanwhile, is 71p.

Facebook's aim, it selflessly claims, is to reduce the amount of spam in celebrities' mailboxes, but in tacitly purporting to provide a direct route to Jessie J's eyeballs, it disregards the reality of social media for even the remotely famous. A celebrity's experience of social media is completely different from our own, bombarded as they are with praise, fury, demands and inanity with each hour that passes.

 Also, many of the miniature missives pinged at notable names come from desperate fans who are so obsessed that £11 will seem like a small price to pay.

Instant access on Facebook might make it easier for Katie Price to respond to such messages before the only useful tip is which buggy to choose, but to any celebrity with a conscience, the day-to-day truth of fanmail can be frustrating and traumatic. They start with the best intentions, hoping to reply to everybody, to solve every problem. But faced with three postbags, it's just not possible.

So how do you ignore someone asking for help?Celebrities and musicians will often talk – off the record – about the turmoil they feel when faced with endless requests from charities, desperate fans, or parents with seriously ill kids. Responding to and fulfilling these requests would be an all-consuming job. And for time-rich celebrities of the reality TV world, this might actually be the answer. It takes 10 seconds to open a message seeking help or charity, assess its content and respond with either "thanks babes", "sorry babes" or "see a doctor babes", then hit send.

So it would be possible to reply to 360 messages per hour. If we take £11 per message as an example, and if Facebook take a 30% cut similar to Apple's App Store commission, that could be £2,520 per day to a celebrity for just an hour's work. That's almost £1m annually. And if we can assume anything of the TOWIE brigade, it's that they would quite possibly view altruism a lot more favourably if it resulted in a huge pile of cash.

The only sticking point is that, so far, Facebook is offering precisely 0% of revenue to a message's recipient, leaving no incentive for a single message to be read. If you'd like to message Mark Zuckerberg to ask why, go right ahead. It will cost you $100.

Facebook poised to announce its 'new home on Android'

Facebook will next week unveil its latest push into the mobile world – and industry watchers are convinced the social network is about to launch a Facebook-branded phone.

Media has been summoned to an event at Facebook's headquarters in California on 4 April, with teaser invitations bearing the words "Come See Our New Home on Android".The world's largest social networking site is giving no further clues, and the announcement could be nothing more than a new service or application, but detailed leaks suggest the company is about to release the fruits of a long-rumoured collaboration with Taiwanese manufacturer HTC – a smartphone whose software is a customised version of Google's Android operating system.

While the camera and memory are reportedly run of the mill – a modest 5 megapixel rear lens for photos, a 1.6 megapixel front facing camera for video calls, and a basic 16 gigabytes of storage – its software may be unique.With a similar look to a black iPhone but boasting a slightly larger 4.3 inch display, the phone is supposedly packed with Facebook services, with easy access to its instant messaging and Instagram photography applications, and a home screen displaying the owner's news feed.

Facebook founder Mark Zuckerberg has made no secret of his desire to do more for the 680 million people who access his services on their mobiles each month."You have a good version of all the Facebook features you know and want on your phone. So now the next thing we're going to do is get really good at building new mobile-first experiences," Zuckerberg told investors in January. "That's going to be a big theme for us this year."