I recently ordered and received ClycloDS slot 1 card and the ezflash V lite slot 2 cartridge with the intention of being able to run homebrew applications. I'm still waiting for the 4GB microSD card I ordered to arrive, but that should be in the next week or so.

At the same time, I've also recently performed the Twilight Princess hack in order to install the homebrew channel on my Wii console.

Basically, I just wanted to take a moment to earnestly discuss Wii and DS homebrew. NOT PIRACY, JUST HOMEBREW.

Seriously, if you need to use the words "piracy" or "rom" anywhere in a reply, just don't. If you can avoid mentioning "emulator" that'll probably cut back a lot too, but I also recognize that the emulators are perfectly valid homebrew as well, so if you're just mentioning it with a list of other homebrew apps, that should be able to slide.

So to get the ball started I figure I'll put out the main apps that I'm most impressed with and or interested in trying out:

SCUMMVM, Wii Homebrew - This one has really been interesting, not so much for they typical stuff like Monkey Island etc, but actually more for the Humongous Entertainment support they have. Putt Putt and Pajama Samwork run quite smoothly on the Wii. Yeah, knock em if you want for being kiddie, but they showed more attention to detail and effort than a lot of the stuff I'm seeing from 3rd parties for the Wii today. I still haven't beaten Pajama Sam 2 so i may just go ahead and do that on the Wii now.

gc-linux, Wii Homebrew - Haven't tried this one out at all yet, I'm still not sure what all I'm going to be able to do with it or use it for, but it obviously has some decent potential.

Quake, Wii Homebrew - I've never played Quake or Doom or any of that stuff before, but the game plays incredibly smoothly, and the controls are superb, in some ways they actually feel better than MP3 controls. The only issue i have with it so far is that when you let the joystick on the Nunchuck rest, you still tend to drift just a little, but as long as you keep moving, it's hardly noticable at all.

I also have a program that's supposed to open up the USB ports for plugging in flash drives and usb harddrives, and there's supposed to be a method to get your PC to communicate directly with the Wii through the Wireless connection, but I haven't tested out either of these yet.

for DS, I'm looking forward to trying out DS2Win Fusion (use DS to view and access computer remotely), DS2Key (use DS as wireless game controller for PC), Sniff Jazzbox (find wireless signals easily), SvSIP (DS becomes VOIP phone), DSOrganize(I've heard "birthday edition" is less buggy than the latest one out), Game Melody Oratorio (virtual piano), Colors! (paint program, apparently at least a few steps up above MSPaint is for certain), and JDS (japanese character writer)

I am completely planning on putting out some ideas i've had for the DS lite and Wii for a long time now. Now that homebrew has kicked off, it's like all those long off ideas are right at my doorstep. Now I just need to get the pieces out of the boxes and figure out how to read teh instruction manual.

What about other people? Anyone else use homebrew? Any programs i haven't mentioned that are incredibly awesome? Anybody else working on developing homebrew games that can offer advice or colaboration, support, etc? 

Hey do all of these DS apps work on the m3ds real with ez flash 3? OH and you could get quake and quake 2 for the ds.

i really don't know myself. typically a search like "DS Quake homebrew" or something like that would likely direct you to a forum for that type of thing. I found a few good writeups at DS fanboy for DS homebrew which is what finally convinced me to make my purchase.

http://www.joystiq.com/2008/05/24/ds-fanboys-week-of-homebrew/

I've been playing with DS homebrew for some time, here's a few of the programs that I'm still using:

Games:
ScummVM:
http://scummvm.drunkencoders.com/
If ScummVM hasn't been ported, it isn't homebrew... :)

OpenTTD:
http://www.tt-forums.net/viewtopic.php?f=33&t=35306&st=0&sk=t&sd=a
It's playable, but not 100% there yet. Still, this is one of my favorite games, so even a passable DS port gets a bit of play.

LemmingsDS:
http://www.mrdictionary.net/lemmings/
Lemmings are always good for a quick time killer.

Still Alive DS:
http://t4ils.free.fr/Projets_NDS/StillAliveDS/site/index.php
This is a new game, so far seems pretty polished and fun to play!

I've also got QuakeDS installed, it's pretty smooth and not a bad version. No music though.

Apps:
DS Organize is pretty decent for what it is, there isn't anything better.

Colors is a cool paint program, the ability to save your work as an animation is cool

Pocket Physics was fun for a little while, but buggy, it's locked up on me a few times.

I've also booted Linux on here, but it's a fairly limited environment. I've got an R4 and an EZ-Flash-3-in-1 for the extra RAM for Linux. I've done some coding on the DS, but nothing major yet, mostly graphics loaders for older games that I'd like to see on the DS. (like XCom!)  Time is, as always, an issue.

Cool. Lemmings is nice to know about, and I'm glad for the warning on the Pocket Physics. who knows, it might actually run better on cyclos, but I guess we'll find out. Once I actually get into doing my own applications, I'll probably hit you up for sites that might help or stuff you've done yourself. just so I have someplace to start from.