Ok, since I made the thread, I mind as well make a request myself.

I'm currently looking for these apps:
Sport Timer (it would be nice if there is one that I can set rounds and resting time because I do Muay Thai)

Something similar to winzip/winrar/etc (Basically what I want is something that would allow the N900 to extract compressed files)

Instant Messenger (Preferable one that can support AIM and MSN, and allows the usage of Video Calls)

OviMap Alternative