[charles_kaw]

I have long believed that there is a huge market for some sort of rudimentary TI-style CAS system, with a caveat. Something that works on embedded arm devices, but is screen aware enough to be ported to a desktop.

If you include bluetooth in your calculator hardware, you now have an excellent input device for an onscreen CAS - or maybe something more like a screencast.

Extend this concept far enough, and we're talking about something like OP is describing - easy to sync and share small programs and tools. Further integration with excel and other tabulated data sources, and you've got a real killer on your hands.