So do you suppose they got rid of the goofy jingles that played every time you changed a menu setting or sent a message? That would be my dealbreaker on this phone. Sure you can give the same response as everyone else did about the 320 and 500 (just put it on vibrate), but I don't keep or want my phone on vibrate full time.
I have the phone and I can confirm that you can now disable the annoying tone that went off everytime you changed a menu item or sent a text message. There is actually a lot more control regarding alerts and stuff that was missing on the CU500.