I have used many bb devices as 88xx, bold, storm, ... But last come back 8700.
Some time limited funtions in this 8700 also let me think of others one bb, but every time use the new one, I can not forget the advance of using track weel, the advance speker and how easy with the key board, so 8700 back again. It happend atlest 3 times with me
Now I use an 8700att with BIS from vinaphone. As usual it not so covenience but could not be others