Are you planning on running ARLiberator? Or just as is?
It really isn't much of a hardware upgrade and is not yet compatible with ARL, so something to think about if that's the route you want to go.
Speculation is that the new firmware for the APR3 will be able to be ran on the 2.
What's interesting is that it will be $100 cheaper than the outgoing iteration and for the same price you can get the one with cd and DVD player.
Outputs are the same as well as screen resolution.
If you're not running ARL then I'd get it vs. the outgoing model just for the new tech and firmware.