I'm gonna get an Nspire; a monochrome Nspire with Clickpad. It's monochrome, so it can emulate the 84+, and it comes with the 84+ keyboard as well. Here's where you should dump all of your favorite monochrome Nspire tools, etc. If Ndless is compatible, I'd be all for that, since I'd likely just be getting it just for programming purposes. Since my Nspire will be able to emulate the 84+ as well, drop some of your favorite monochrome Z80 stuff on me too (except stuff that uses undocumented opcodes, like MirageOS. I'll use Doors instead ). Just make sure you seperate the Nspire from the 84+ stuff.