Okay, I lied about Dev Kits, but there's certainly some new things over on the Peters Plus website for the eager Sprinter Developer. First up they've provided a sample plugin for Flex Navigator, including source code. And they also mention of a new version of rw1p2, a cross-compiler by Shaos, now supporting the Sprinter EXE-format. This one includes the source for a Tetris game too. Lovely.