Well, i made a small Turing machine for the nspire, complete with an editor for the transition functions.  It features:
 - editor (WIP)
 - saving, loading, importing and exporting transition functions in the editor
 - visualization of the Turing machine

Controls:
 - editor:
    - switch active element: [ tab]
    - insert transition function: [ i]
    - remove transition function [ r]
    - edit transition function [ Enter]
    The two upper Textboxes are for the input and the initial state
 - Turing machine:
    - calculation step: [ i]
    - reset: [ r]
    - run: [ g]

The user interface isn't final yet, so the controls will probably change.

Well, I tried to move some large files and the calc ran out of memory in the file system. After removing some files and rebooting the calc, it said the Total memory capcity was 115.2 MB. Normally the Nspire CX should have a total of 150 MB. Is there any way to get them back? I've already tried deleting all files and reinstalling the OS, with the side effect, that (nlaunch doesn't work any longer for some reason)
At the time this happened I had ndless 3.6 and nlaunch installed. Maybe these have something to do with the reduced memory?
This is what it looks like in the status menu:

After the option for importing images to lua as strings is not given any longer with new versions of the student software this tool might be useful for thos of you who will continue to use this way of loading images. But it can also be useful if you want to convert your old strings to the new resource format if you have lost the original image file.

Features:
 * loading all common TI.Image strings
 * saving a TI.Image string to an image in .png format
 * fast loading of TI.Image strings from images even for big images
 * improving and shortening of existing TI.Image strings
 * some more options to adapt the conversion to your needs
 * storing the result to your clipboard
 * Platform compatible Jar-File

I hope this toolset will be useful to you

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