The Blackaberry Pearl 8130 is an updated CDMA version of the Pearl 8100. Dubbed the Pearl 2 by Verizon the 8130 features an identical form factor along with a new OS, better font rendering software, 2.0 megapixel camera, stereo Bluetooth and a 3.5mm headset jack.
Buying a replacement phone will not affect your existing service contract, but are generally more expensive, since they are not being discounted by your carrier.
More info...
Carrier Compatibility
Properly unlocked, this phone should be compatible with:
ALLTEL Wireless, NTelos, Sprint PCS - Note! Always confirm compatibility before purchasing.
More info...