mini wiki that could
I got the original M3 Perfect SD when it first came out and I have one of these [USA R4 from DealExtreme.Com] and I'd like to answer some people's questions.
THIS IS LEGAL, first off. There was a lawsuit trying to mark these as illegal but they aren't. They may or may not violate a deal that you may or not have with nintendo relative to using your NDS, that I don't know. I know that if you open up your Wii and put in a MOD CHIP and then a software update BRICKS your WII then tough luck. You violated your warranty by opening the case.
This is legal as the same way guns are legal. You can legally have one but what you do with it, and the legality of those actions, is up to you. I have tons of homebrew software for my M3 and plan on getting more for my R4. You can get linux, msn messenger, IRC, VoIP, web browsers, games, address books, PDA, learn other languages, emulators to play NES, GG, MS, MD, GB, GBA and SNES roms. You can also get NDS roms, too. One thing that is nice about that is my daughters quickly loose or break their NDS cartridges. This allows me to put the roms on the R4 so they don't loose them. I do the same with their audio cd's by ripping them with iTunes and placing them on their iPods (remember the Rio being sued for promoting copyright piracy when it [the first mp3 player] came out?!?).
If you do get this for NDS roms there is a nice program that shrinks the roms down. If a game is 130 mb's it goes on a 256 mb card and the rom is 256 mb's. I saved a lot of hard drive space (relatively so) with this program.
Other things that are nice about these is the ability to download/edit save games. I hacked some of my games so give me more money etc. The R4 also allows you to cheat in some games. One of the cheats in one of the racing games always gives you first place no matter how you finish! :claps:
I highly recommend this. BTW, you CAN NOT get this on dealextreme anymore. You have to go to their sister site VolumeRate.Com; which is sold out right now.