I've got some barebones C code that generates privkey+address and works on Linux. I was working on compiling it for the TI with the sdcc compiler. I may also have to rewrite the input/output to use the calculator's system calls. There could still be pretty big obstacles as far as what the compiler supports and device constraints. I haven't had time to work on it in the last week.
To be honest I will probably do it without a bounty, but would like one and can justify working more if there is one.