AT&T's second Android phone, the HTC Aria, is now available for purchase. You can buy it direct from AT&T for $129.99 after $100 rebate, or you can find it other notable online sources for considerably less (read: free). While the specs on the Aria don't exactly match up with some of the newer phones we've seen, the results we've seen on benchmarks show that this phone is more than capable of holding its own. [AT&T wireless]