Wow this looks great Kerm. I have seen the photos a while ago and I'm happy it has progressed more. I hope to find some time to try this while I'm not lost into ice hockey forums. Many people complained about the lack of 3D graphing on the PRIZM and how they might go with a TI-Nspire CX instead. Not that I discourage a CX if you want nDoom and the nintendo emulators immediately, but the PRIZM has much more freedom for programming, thanks to Casio being more lax on 3rd-party development.
By the way there are some people still doing PRIZM hacking, but not as many as Cemetech and they're pretty busy (such as Reo and Qwerty.55). Z80man moved on to other interests due to lack of time.
(A bunch of people got the calc recently, but I guess school happens
EDIT Also I think another reason why there is so few PRIZM dev lately is because there's a new French 83+ contest every few month, so most people work on their entries instead.