Someone has finally made a drawing app which can compete with mine!

* DLDI
* Saving & Loading to BMP
* Pencil and Brush tools
* Paint Bucket
* Blur tool
* Zooming — allows to draw an image 2x the size of the screen
* Undo/Redo
* Nice GUI

Things that it’s still missing which I had:
* Save & Load to PNG
* Save & Load to SRAM (for flashcart users, and slot-2 devices which have no DLDI)
* Slow paint fill — his just fills everything
* Nicer color picker — his makes you twiddle with R,G,B sliders

Give it a try!
Phidias

The DS Motion Card is a motion sensor addon for the Nintendo DS. It contains a 3-axis accelerometer, as well as a 1-axis gyro sensor. The creator was kind enough to send me one, so that I could play with it and make stuff for it to help him promote it.

Anyway, so far I have made a simple marble demo, tip your DS and marbles roll around. Currently it’s very simple, no collision detection or anything. I’m probably going to make a game out of it, simulating those little keychain toys where you have a few marbles, and you have to get them all into their respective holes.

Download:
Marbles.nds
SourceCode

NOTE: To build, it will require a CVS version of libnds, dated 2007-01-10 or later. Dovoto added ndsmotion code into libnds, as well as a nice simple example.

I’ve decided to put my collection of official DS Download demos online. It is the most complete collection online that I am aware of, please let me know if I am missing any. The only other large collection I know of is at sgstair’s wiki, and it is missing a bunch of the newer ones. I’ve made a php script which will automatically pull out the icons and file info directly from the .nds file. Now if only I knew how to design webpages, I’d make it look nice, but it’s functional enough for now.

Check it out here: Downloadable DS Demos

Legal disclaimer: I am putting these online in good faith that Nintendo and the respective copyright holders wish them to be distributed, as they are only demos, and are not (and have never been) sold anywhere.

UPDATE: Added a few new demos: 2 from English Training, 2 from Dragon Quest: Rocket Slime, and 1 from Lode Runner. The ‘Tank Battle’ demo from Rocket Slime is a fun one.

UPDATE 2: A new batch of DS Demos uploaded

I made a quick port of Mathomatic to the DS. This is an algebra tool, simplifies, solves equations, et cetera. It’s still not as cool as the dslinux version, since the default libnds console doesn’t have color. But it has the advantage of being easy to start up and use.

Download MathomaticDS (includes sourcecode)

A couple of people have been having problems with dumped ROM files coming out corrupt. Turns out this is a known problem, if you are interested in the gory details, check out this site.

For those of you who just want it to work, I’ve taken the code from the above site and ported it to C, to make a simple TI-85 ROM fixer. In order to use it, you must know your own ROM version first.

Make sure to read the included README file!

Download: fixrom.zip