Interesting, I had no followed the game controller scene quite enough to know there were any that didn’t physically attach to an iPhone/iPod. Makes sense, though, that something like the SteelSeries Stratus would exist.
And yeah, I forgot to followup, but I did research to see if there was any difference between “screen lock” and “background” in terms of the app, and unfortunately there really isn’t. Until there is, we’re kind of hosed on the idea of a hard button remote connected via Roomie on an iOS device.
There are other ways go go around Roomie to do the same thing, but that obviously diverges from the advantages of Roomie in the first place. So my next best step would be to make my own “game controller” that I could snap on the side of any iPad. Might have to buy a Stratus and see if I can repackage it easily.