I’ve been looking for some chip-reprogramming ability so as to max out Bit’sBox, my GMC Safari Conversion van. Mostly, I’m interested in tweaking the MPG some. There’s a lot of stuff out there to interface the onboard computer with a laptop for that kinda stuff, along with the stand-alone boxes that hang off the diagnostic port. But this is the first I’ve ever seen that will tie a GameBoy to the ECM this way.Engadget has details