That thing looks like a DS hinge on a cardboard box! Yuck! Better to just port UAE to iOS and run it on a 1GHz ARM on the iPod/ iPhone/ iPad for under $200! 
Because playing games meant for mouse/joystick on a small touch screen is so much fun.
The Pandora has a Dpad, dual analog sticks, a full keyboard, and USB host for using a mouse. It's no contest.