[Update, voting for US entries has now concluded - opening for the international winner will open soon]
Go to http://www.newcloudapp.com/vote.html to browse the apps and vote for a winner of the Azure Services Platform Developer Challenge. Voting ends June 29th for the US winner. (voting will open July 10th (submission deadline of July 9) for the international winner).
Lots of cool apps there, definitely worth a look -- all running on Windows Azure.