26th
Tubes
Online/offline synchronization, this is what companies like Sharpcast have been working on for a long time, a huge acheivement if you ask me becase synchronization is freakin’ hard to do. Music, movies, news, etc. You can also see the public Tubes sites that others have published.
Client and information lives on your desktop, even if you’re not connected to the web. Can continue to add/modify/delete and then it automatically syncs up. There has been a ton of debate in this space because of the growing popularity of web services and the fact that most of our information now lives the cloud, but technologies like Adobe AIR (who I think will acquire these guys) and Google Gears have validated this approach. The obvious use case is traveling on a plane, but at the end of the day, there are many more, and this technology has been a long time coming.

