Just a short update: I am in the process of porting Quasar Media Player from Qt 2/3 to Qt 4. This will add support for Maemo 5 (and earlier) and should improve the usability and offer the Maemo look and feel.
The port is a lot of work, so it might take a while to get it finished but I am hopeful. It is already working for the most part on my Mac, however not on my N900...
The Qt 4.6 version that is available for the N900 and the other internet tablets does not include the Qt3Support lib. I can understand why they do not include this support. Either way, I am taking the hard way of porting completely to Qt 4 without the compatibility and legacy support.
You may follow the current status via: http://twitter.com/#search?q=evilJazz%20Quasar

Cheers,
Andre