
Editor's note: This review has been updated to include the results of our battery drain testing.

Back in May, we fell in love with the original RIM BlackBerry Curve, but a recent refresh of the smartphone has our hearts pitter pattering all over again. The RIM BlackBerry Curve 8310 keeps the same sleek design and robust messaging capabilities of its predecessor, but then adds GPS capabilities. The ability to use your smartphone as a navigation device is particularly useful for mobile professionals who are constantly on the road, running to meetings or traveling for business trips. And we found it to be quite the capable navigator during our road tests using the TeleNav GPS Navigator service. The tradeoff is that for the GPS, you give up integrated Wi-Fi, which is what T-Mobile opted for in the RIM BlackBerry Curve 8320 (we know--we want both, too) and there's no 3G support yet. For this review, we chose to concentrate on the features and performance of the device; for more details on the phone's design, please check our review of the original Curve. The RIM BlackBerry Curve 8310 is available now from AT&T for $199.99 with a two-year contract and after rebates, in either red or titanium.
