It is illegal in some countries, like the UK. You cannot import or sell them there. In other places, the R4 itself is not illegal but many of the things you can do with it, require you to break the law, usually the DMCA.
It is not illegal in most other European countries (except the Netherlands), nor the USA or Canada, but they are illegal in Japan too.
Every kinds of r4 cards are made in China, they are legal in China.
Not natively, but you can get a flash card such as the R4 that will let you. Google R4 DS
An R4 is basically a mod chip for the Nintendo DS console. You can download games from the internet and put them on your R4 card and play the games on your Nintendo DS.
The cheapest i have seen was for £5.42/$9.50 (not including P&P or MicroSD Card) There are too many r4 ds card in the market currently. The cheapest r4 ds card cost about 5EUR. But it only support DS and DS lite. The famous card is r4i sdhc 3ds. It support Nintendo 3DS,DSi,DS. So, I suggest you to buy a r4i sdhc 3ds card.
about 4000 games
no it is not that is a r4 card it for the Nintendo ds r4 card is not legal in most country. as it hurt the benefit of Nintendo and game developer. with the r4 card, user can play most DS games for totally free. they won't pay any money to game developer. So Nintendo is beating flashcard all the time.
R4 card which is illegal, by the way.
The R4 card is illegal in most country, because it simulate the original DS catridge to play free games on Nintendo 3DS DSi and DS console. The customers don't need to pay any more for game play, and the game developer can not get moneyanymore.
A r4 card is a card you can use to download games on, so you can play them eaiser!
You can phone people on a DS r4 card, if you know how to(look on youtube-type in-phone ds). But you can't text anybody+it's illegal to use r4 cards to play games, music and phone people with.
Not natively, but you can get a flash card such as the R4 that will let you. Google R4 DS
From what I hear it is compatible. I am not compielty sure if it compatible. There are many r4 cards in the market currently. The r4 ds card is only for ds and ds lite. but the r4i card can run on dsi. Well, the latest version is r4 3ds card. It can run on Nintendo 3DS,DSi and DS console. If you want to get a flash card with good compatibility, I suggest you to got a r4 3ds card.
No.
i don't know want your taking about but if you mean R4 card i know a R4 card is a DS card that you can download games for free
An R4 is basically a mod chip for the Nintendo DS console. You can download games from the internet and put them on your R4 card and play the games on your Nintendo DS.
The R4DS is a DS flash cart that can run DS Roms and Homebrew programs. Downloading DS games/roms you don't own is illegal.
no it's not 'cause r4 works as a memory stick where you can run DOWNLOADED games in your ds which is ILLEGAL.
hacking is illegal, but if you need to play homebrew and downloaded game roms on your ds purchase an R4 or an M3 hack card you can buy on eBay