The classic Nokia tune (inspired from Francesco Tarrega's composition Gran Vals) is to be replaced by a dubstep modern version composed by DJ Valerio Alessandro Sizzi.
Nokia Tune Dubstep Edition
This new tune is a modernized version inspired from the classic Nokia ringtone.
Nokia Original Ringtone
Personally, I didn't despise the new tune, it's just that I can't seem to feel comfortable hearing it ringing everywhere.
A cool modern tune (in my personal opinion) is the Samsung Tune: