HTC has just released an Aria update that enables Mobile Hotspot and Sideloaded App Support. AT&T says is now able to act as a mobile hotspot thanks to an application from the Android Marketplace in addition to being able to receive some third party low from side loaded applications. Of course, if you’re going to opt for the mobile hotspot functionality, you’re going to be forced to upgrade your data plan and grab the expensive tethering add-on but if you must have it, it’s certainly worth it.
If we had to guess, it probably requires AT&T’s 2GB DataPro plan plus the tethering add-on, which would put it in line with what they’re charging on the iPhone. Onward and upward, AT&T.