A few months ago, Qwerty.55 managed to run 3rd-party SH3 assembly code on his Casio fx-CG10 calculator. He made a program that set up the CPU clock speed to double of what it is normally. Unfortunately, the add-in caused a reset after running, so the result wasn't very concluding. However, recently, some add-ins that won't crash have actually been made, including a memory viewer called Insight:



The current version can be downloaded here.

Beforehand, someone under the nickname Kristaba created an add-in that shows the calculator FPS and fades in to red every second. Although this one isn't very useful, it is still nonetheless impressive to see third-party add-ins already running on the new calculator, despite its recent release.



If you download and install it, be warned that to exit, you must pull a battery, though. It can be downloaded here. It tests the LCD's framerate by filling the VRAM with a color.

And this is nothing, SimonLothar has been recently working on a third-party C SDK, ported from a FX-9860G one made by the community a while ago. z80man, on his side, is working on an emulator. There is also a tool package that can be useful for PRIZM hackers located right here.

Wow!
Now we should be able to port games to color.  

Well... Programming is still hard. I don't think we have discovered any display routines in the OS other than basic text stuff, and modifying the add-ins to match the checksums isn't exactly easy either.

I am sure that you guys will be able to figure it out.

EDIT: W00t 69th post

Yes.

I can't wait to see a game or something!  So why did this not take as long as the Nspire to "hack"?

hey, once you have graphics down I'll buy a prizm.

it has a  touch screen
does it have enough processing power to emulate ds games?

Probably GBA emulation, but given the last attempt on the faster TI-Nspire, it would most likely require a lot of experience in SH3 assembly.