If you’re getting bored of the Android-powered phones being offered by Motorola and HTC, you might be interested to hear that AT&T has officially announced that it will be carrying Dell’s Aero, its first Android-powered smartphone in the U.S. Aside from the Dell Aero, the Palm Pre Plus and Palm Pixi plus have also been announced, further beefing AT&T’s phone offerings. Technical details of the Dell Aero aren’t available just yet, but we do know that it will sport a custom user interface developed by Dell and AT&T. Stay tuned, and we’ll keep you updated on this phone!