Back in April there was an April Fools joke revolving around something called an iCade which was an iPad in a mini acrcade console playing 80's video games. Using Arduino circuitry and cardboard, Hideyoshi Moriya has created an iPad Arcade prototype. The prototype is a fully functional with working controls. Video Link iPad Arcade Prototype
It is actually for sale at the same site that had the April Fools ad. Looks like fun but I am not sure it is worth $150.00. Still, I would love to have it as a dock in my office.