Getting a little sick of the default windows mobile ringtone, I decided to sit down and smash out something a little different.
after about half an hour of fiddling about on my midi keyboard and various bits of music software, I ended up with something a little more lively.
Grab a copy below if you’re interested 
hehe pity u can’t do the same on WP7
Windows phone 7 cant use mp3 for ringtones?
that is disappointing