After ExtendeD added support for C++ to Ndless some months ago, I have added experimental C++ support to Nspire I/O now.
It has an iostream-like interface, so it should be easy to use (at least I hope it is )

The obligatory "Hello World":
#include <nspireio/console.hpp>

int main(void)
{
  nio::console c;
  c << "Hello World!" << nio::endl;

  return 0;
}
A more complete demo can be found here.
The output of that demo is attached below.

The source code can be found on Github and in the attached zip file (that contains the compiled library file and demos as well).

So, do you guys know about RTL-SDR?
Basically it turns cheap DVB-T-Sticks into a Software Defined Radio with a frequency range of 52-2200 MHz / 24-1766 MHz (depending on tuner).

You can do some cool stuff with it, like getting images from weather satellites or listening to unencrypted voice transmissions (e.g. pilots talking to ground stations etc.)

A compatible DVB-T-Stick costs $10-$20, so it is really cheap for what you can do with it.
You can find more information (and more possible use cases) on rtl-sdr.com.

I attached a screenshot showing the position, speed, altitude, etc. of nearby aircrafts by receiving ADS-B signals at 1090 MHz using my Terratec T-Stick Plus (with E4000 tuner). I can receive transmissions from planes that are up to 120km away from me using the supplied antenna.

Yesterday I started to fiddle around with Nucleus OS (the underlying Operating System of the Nspire) and here is the first tool I wrote for it: A Task Manager
It shows the currently running tasks, infos about them and it can kill tasks

Currently it only works on classic non-CAS Nspires (it shouldn't be hard to add support for other models, but I am lazy...)
More features will come.

Known tasks:
gui - User Interface. Killing it crashes calc
KPD_TASK, KPT_TASK - Handle keypad input. Killing them makes the keypad unusable
wcm_* - probably related to the wireless cradle?
OffMon - When killed you can't turn the calc off

This is a list of (almost?) all native Nspire projects (-> programs that require Ndless)
with a short description, required Ndless version, Classic/CX compatibility and download link.
There are also some general statistics about Nspire development

Link

This tool gives you access to selected Nspire documents while in Press-To-Test mode.

Installation

- Place pttkiller.tns in ndless/startup
- Create a folder called "ptt"
- Drop documents you want to use in it

On every boot you will be asked if you want to enable access to documents.
If you are not in PTT mode, just press "No" or hold ESC while booting to skip the popup.

Sadly, Ndless programs won't work in PTT mode.

Edit: Files removed by administrative decision.

OSLauncher is deprecated; Use nLaunch or nLaunch CX instead.

I decided to port OSLauncher to OS 3.1 some weeks ago, because it would only require one line of code change. However, memory allocation failed because a decompressed OS 3.1 doesn't fit into RAM.
ATM OSLauncher decompresses directly from a file to allocated memory, and then copies the decompressed OS to the OS base address (0x10000000). This requires a lot of memory (around 11MB for OS 3.1 CAS).
So I decided to change the way OSLauncher decompresses the OS; It loads the compressed OS into RAM and directly overwrites the old OS at 0x1000000. Using this method requires a port of zlib because syscalls won't be available with disabled interrupts.

Basically my code works, I can launch DummyOS and it works fine, but OS 3.1 CAS reboots. I have calculated some checksums to see if there are any errors at decompressing, but the decompressed OS is okay.


BTW, CX compatibility isn't far away, but DummyOS won't compile anymore which I would need for testing purposes.
I think it stopped working after updating SVN.

If anyone is interested in helping me, here is my code (+ executable).

When I launch a program via my shell, is it possible to make functions and variables of it available for the launched program?