i've actually been quite curious about the MyIDE + Flash IDE interface as well. i assume that unless one can afford two internal versions, just getting one cart will suffice when having more than one A8 (not used simultaneously of course). with the cart, would i be able to start my 600XL and 800XL in Rev. C Basic or Turbo Basic XL (once flashed to the cart)? if not, is the only option to get the internal version or an APE Warp OS+ 32 in 1? i only use my A8's for learning Basic, ASM, watching demos and playing with Trackers so i don't need much. Rev. B basic is pissing me off though with it's intermittent freezing etc. i need an alternative OS but i can't afford the MyIDE cart and the APE Wart OS+ at this point.