I assume since it's on this board, you are willing to pay. Did you forget to say how much, or maybe you are looking for bids?
I am interested and have a TI-84+ (seems to be backwards-compatible with 83+), but realistically would probably only get around to it if there's some money to be earned (or at least several people who would appreciate it
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
). I'd prefer to release it as open-source. I'd need to look at the specifications closer and do some estimating on whether it can fit in the space requirements and won't be painfully slow, before I devote too much time. I also wonder if a bitcoin QR code can be reliably scanned from that low of a resolution.