Google's incredibly popular social network, Orkut, is now available through a java based smartphone client, which is optimised for S60 phones. Orkut has a presence with as much, if not more, impact than Facebook or MySpace in both Brazil and India and providing greater access to the network.
I got it installed on my 5800. Its not touch optimized. Though you can get rid of the on screen navigation keys, it doesn't recognize a touch on every control.
Also, it looks very unstable and freezes frequently.
Installed on N73. Quite a clunky application. Gives the feel of an early beta rather than a full release. But still nice that google finally came out with an orkut app.