Here’s a fun little conundrum for you. A mysterious new Android handset from HTC — the Intruder — has shown up in the internal inventory system at The Shack, and appears to be destined for life with AT&T. But what is it? Apparently there’s a good chance it’s the Liberty aka Aria, a handset we know to contain HTC’s Sense UI, 3.5″ display and 5 megapixel camera. It’s listed as $700 full retail and $130 on a 2-year deal which seems to be a bit on the expensive side…but let’s be honest, people on AT&T who are dying for Android will pay just about anything for whatever they can get.