Motorola ROKR E1
A quick question
You can't use iTunes music for your ringtones. Plus, to use a mp3 as a ringtone you must store the file on the phones memory. The phone has a 5MB storage capicity. So here is the summary:
1. Yes you can use mp3's as ringtones
2. You can't use iTunes for ringtones
3. You must buy the mp3 clips or make them yourself