1. 3G Video Calling: If you dont/cant use it, why include a Front cam?
2. NEW Media Player! (Visualization would be great too): Current one is buggy and lacks lots of important features.
3. Media buttons: Even official WH-205 headset buttons dont work, it really sucks.
4. Say who's calling: It was a great feature on my Symbian phone, I miss it :/
5. Blacklisting: Even if you dont support it officially, help the community to create a blacklist app. It was a important app on my Symbian, I dont think theres any reason for Maemo to not support it.
6. Portrait Mode: Not necessary, would be cool. At least add it to Conversations and Media Player app.
7. MMS Support: I dont care about this much, but show a notification at least, if I receive a MMS message. (Received only one MMS last year, from my friend :P )