Riding the Wave ... Nigel Tao. His other brother, Trevor, is the subject of an upcoming book on autistic savants and has a double degree in maths and music. Nigel, who has an IQ of 180, is also a maths whiz but went down a different path after leaving university in 2001 to follow his honours supervisor to a coding gig at a dotcom company in the US. He has been working at Google Australia since 2006. "It might have been genetics, it might have been upbringing, but part of it is [that] as kids we enjoyed reading about maths and ... messing around making programs," he said.

"I don't have a trophy cabinet like Terry does but I think I've done some good stuff." A case in point: Google Wave. The product seeks to introduce a completely new way of communicating online by combining elements from email, instant messaging, wikis and social networks with the ability to share documents, maps, images and video - all rolled up into a single new web-based tool. Head Google engineer Lars Rasmussen said the company planned to open Wave up to everyone early next year but first wanted to make sure all of the bugs were ironed out and that Google's servers could handle the load. "It is a new type of communication - email is the way most people still communicate, which is remarkable because the technology was invented 40 years ago," he said. "If you look at a picture of the first computer that sent an email, it looks sort of like a cockpit in an old airplane."

Some enterprising bloggers have tried to sell their sought-after Wave invitations on eBay, even though it breaches the site's terms of service. One blogger claimed he was offered several thousand dollars for his invitation before eBay told him to remove the auction. Rasmussen describes a Wave as a shared object that sits in between a conversation and a document. Everything inside Wave happens in real time and groups of friends can use it to chat, collaborate on documents, play games and share files. Rasmussen admits he still does not know exactly how people will end up using it, which is why Google has opened up the platform with an Application Programming Interface (API) so that third parties can extend Wave's functionality - in a similar way to "extensions" for the Firefox browser.

"We think our API is good enough that integration can be done with Twitter, Facebook, email, instant messaging, Orkut," he said. "The idea is you could sit inside Wave and manage all your communication on those other systems - or not." Some of the extensions developed so far include Sudoku, teleconference tool Ribbit, Lonely Planet travel guides, Google Maps, AccuWeather and video chat. Rasmussen and his team have coined the term "wave moments" to describe something in Wave that would have been much more difficult to accomplish using existing communications tools. They now use Wave for most of their internal communications and find it is a more efficient way of conducting meetings, as text from each participant appears live as they are typing.

Revisions of the tool will allow users to turn the live typing function off, Rasmussen said. Loading "When you have everyone in a room, only one person can talk at a time but in a Wave you can have five people talking at the same time," he said. Google co-founder Sergey Brin has said he thought Wave sounded "kind of crazy" when it was first proposed in 2007 but now believes it will herald "a form of interaction that you would not have previously imagined".