the 4500 is almost exactly the 6000, without the camera
same display same menus functions
however it has speakerphone and voice command, which lets you access the phone book, etc just by saying the command
for example you just open the phone and say contacts and it takes you there
it seems like a pretty nice phone
the new motorola camera phone should be out soon...that looks like a sweet ass phone
other than the 4500, the 6000 is still the best phone available