Song Rating through Touch Screen

Can this be done? Before I got the C3, I used an AUX cable and able to rate a song as it played . . . I doubt it, but is there any way to do this through the touch screen interface when connected via USB?

Since you can't permanently delete songs through the iPod/iPhone as they will just show up again while syncing, I rate all the songs 5 stars as I come across them in playing. Then when I sync with iTunes, I sort by rating and delete all the 5 star-rated songs.


Thanks for any thoughts or advice!