Uh. Well, tmobile's curve has wifi capabilities, the cdma curves have 96mb of mem as opposed to 6smb, and sprint's blackberry devices have no mms capabilities. You decide.
Posted from my CrackBerry at wapforums.crackberry.com
It really depends on what is important to you in a phone.
The all have their pluses and minuses so I don't think any
outshine the other. Although the 8330 has 32mb more memory.