Man, the folks over at this year's Game Developer's Conference are having all the fun -- and now the Joystiq crew just got a rare look at two Game Boy models that never made it to production, unveiled during a talk by the project leader for the development of the DSi, Masato Kuwahara. The first, developed around 1995, was labeled "Game Boy Advance Predecessor," and was based on a 32-bit ARM RISC processor. The project stalled in development due to poor graphics performance. The second device was essentially a touch-screen Game Boy Advance SP, with a clamshell case thrown in for good measure. Apparently, this one didn't make the cut due to its lack of a backlit display. We've got a picture of that one for you too -- and it does look somewhat familiar. Check it after the break.