I think the only thing you will miss is the larger screen
Since there isnt a large screen CDMA device yet (I cant wait for the 8700 series in CDMA), you can go to the 7250 for the full keyboard, but lose some screen. If you go with the 7130, you have sure type (which is actually very easy) and a smaller, much higher resolution screen.
Either way, you will be please with the upgrade
Blackberry Storm2 (Verizon)