Dsi ware?

can you get dsi ware for free by using my r4i?

no. DSi Ware is locked to the unit it is downloaded on.

I'm guessing it will take a cart that has DSi functions on it being released before DSi mode gets cracked. Once it's cracked, then maybe, some time later, will we be able to play DSi Ware games on any DSi after some kind of patch is put on the file.

^Indeed :)