It just had to happen. Someone had to “define” Web 3.0. And it wasn’t just an ordinary someone. It happened to be Eric Schmidt the CEO of Google.
According to Read/WriteWeb, Schmidt “said that while Web 2.0 was based on Ajax, Web 3.0 will be “applications that are pieced together” – with the characteristics that the apps are relatively small, the data is in the cloud, the apps can run on any device (PC or mobile), the apps are very fast and very customizable, and are distributed virally (social networks, email, etc).”
(Thanks to Ian MacDonald for this one)


Err, so what’s the difference then?
I would think of Web 2.5 as a continuation of Web 2.0, but with a seamless online/offline work environment. E.g. I’d be able to use Gmail even while offline, as I would any normal mail application.
I think it’s too early to define Web 3.0, until something more revolutionary is actually happening…