On Saving 3DS Games

One thing I dislike about the DS is that save states are to the actual game cartridge.

Can the 3DS store game memory into its own hard-drive or will saving resemble the DS? I can think of quite a few reasons why I'd rather have my memory in the system than the game cartridge.

I thought the SD card thing was confirmed? And actually, I'd like saving to the cart more, so that if you want more files, you can just get another cart instead of another 3DS.

I would think it would be more advantageous to save to the card than to internal memory. What would be the advantages of saving to the system itself?

Memory cards are the best... that's one of the reasons the GC is so great, memory cards!