In the span of two days, we’ve seen two new BlackBerry Curve smartphone releases, one from AT&T Wireless and one from Sprint/Nextel.

The new AT&T offering, the BlackBerry Curve 8320, isn’t exactly new, but it is a newcomer to AT&T Wireless.  The Curve 8320 is a lot like the 8310, but with added Wi-Fi and no GPS.

The BlackBerry Curve 8350i, on the other hand, is brand-spakin’ new, and features support for Nextel’s Direct Connect push-to-talk service, Wi-Fi and aGPS.