Questions about multimedia application development?

Hello,
I'm a student in telecoms engineering (option multimedia services) and i'm new to j2me development.
I have a nokia 2630, but it is generating java exceptions for any access to multimedia(camera, MIDI, microphone, etc) or phone memory (no memory card support).
I'm not sure if this is due to the lack of the APIs on this device or to the lack of a certain certificate??
Are there better devices than nokia X2 for multimedia development with equivalent or less price?
I want to test real time algorithms on a real embedded device rather than using the emulators which run on fast computers.
Regards,
Ronalt Feder
