a cheating device
Yes, Game Sharks sometimes can fry your DS, because any cheating device you use has some chance to destroy or damage your game or system.
I think I-Cheat on http://www.i-cheat.co.uk/index.htm
Catching mew on a ds game is impossible without cheating. However, anyone with a wii system can download my Pokemon ranch, and the game will allow you to trade a Pokemon egg for mew.
No, you can't. Action Replay DS is a cheating device only. To backup saves, you would need either a Gameshark DS, or an Action Replay Max Duo.
You'll need to use a cheating device, such as the Action Replay DS.
They all suck!
Possibly gameshark, a cheating device.
The Action Replay DS is a cheating system that "modifies" the coding of a game so that you can do extra features for your games. You can use the default codes that come on it, or you can go to websites (like http://www.warc.us/) to get other codes that aren't originally on there.
No, hacking it or modding it can but cheating not
One can buy a DS lite system at the local electronics stores like Best Buy. Amazon and eBay also offer DS lite system at a very reasonable price. Some Walmart locations also carry this product.
There are a couple of places you can buy R4 for the Nintendo DS system. You can buy this at Best Buy or GameStop.