This amazing thingy called WAVE from google...

OMFG..... All that i could say was these people at google are crazy... how could they even implement this? So so damn real time...So much fun..So open..Everything is open for u. There are robots, there are blips, there are fellow wavers and all that u have to do is just start waving.
I cant say everything about it. Just go through this video. i know it's a looooong video as claimed by them but worth a check.
Just have a look and i swear u cant resist using wave.

Here's the link:
http://www.youtube.com/watch?v=v_UyVmITiYQ

I'm not sure if this works,this is an embedded thing of the same:



Happy waving:
Harsha