Mark Zuckerberg, the 26-year old CEO of Facebook, the world's largest social networking website, came to London for the company's Facebook Developer Garage (video below).
He also used this opportunity to meet with Culture Secretary, Jeremy Hunt, who described him on his Twitter account as being a really smart guy with some good ideas on how to improve digital engagement in policy making.
Zuckerberg confirmed at the FDG event that the company is busy finalising the addition of location-based features that will integrate data from co-opetitors like Foursquare or Gowalla without providing with further details.
He also singled out Europe as being the main driver of Facebook's growth outside the US with more than half of the 300,000 websites using Facebook's Like plug-in and social APIs coming from the continent.
Interestingly, Zuckerberg used Spotify as an example of how Facebook can be used by third party services to extend the social graph, making it a lot easier to use and a lot faster as well. The new version of Spotify introduced a raft of new social features back in April 2010.
There are two things to note about the inclusion of Spotify in Mark Zuckerberg keynote. Firstly Spotify is not available yet in the US, which means that either Zuckerberg has access to VIP passes from Spotify or he used some clever VPN access hackery to get Spotify services.
Then there's the fact that both Spotify and Facebook share a common investor, the all powerful man behind Hutchinson Whampoa, Li Ka-ching. So it might not be a mere coincidence after all.