Well Day 1 already provided me with two apps I did not know about and I'll briefly talk about them.

Shazam

Create and share music moments and stories. With Shazam you can identify music tracks, buy them, and share the tags with friends. You can also learn more about artists; find out what's hot and grow your music collection.

With the launch of App World, they are offering a 60 day free trial. I have used it already like 7 or 8 times today. I used it with some obscure songs from a random mix cd my friend made me some time ago.

FlyCast

FlyCast delivers music, talk, weather, and traffic to portable devices. Introduced in January 2008, the network has grown very rapidly from 80 channels to well over 1000 in a nine month period, and more channels are added weekly.

The coolest thing I found about it was the local station availability. Also, you can choose to exclusively use WiFi or just 'prefer' it. I tested it out with a few stations and the app really runs well on my T-mobile Curve 8900 (over Wi-Fi... I refuse to try it w/out Wi-Fi).

Check it all out for yourself at BB App World here.