[srge]

In the old days, Google would have bought an existing player and scale it. Now seeing Google bootstrap this kind of mainstream business seems awkward. Also I personably am very doubtful of any new app/service that Google releases.

[icebraining]

Google has always bootstrapped services, especially stuff from their 20%-time program. Orkut, Google Lively, Google Video, Wave, Google Offers, Google Health, and on and on.