As a side project I thought about creating an interpreter for it(TI-Basic), the graphing functions might require advanced libraries but I'm sure they're available. How easy would this be? I'm not going for an OS, just a recreation of the home/graphing screens, buttons, and of course all the functions, another hard one might be interpreting boolean math. I'd imagine loading the code as text would be easiest but there are some problems with the odd characters of course.
And yeah I havent been using the calcs in months, since graduation theres no extra time to play around on them.