MP3, AAC, WMA. Every song must be unDRM-ed.

It's possible with touch-dragging Lists, and controls. Smartphone version will use the D-pad.

Lumen supports only portrait orientation 240*320 displays in the current phase of development.

Select an iTunes playlist in the Bridge software, and push the Sync button. Your music starts to transfer through ActiveSync.

Connect to your desktop PC, and use its iTunes library like you synced it.