3DS/DS Emulator questions

If you guys don't mind, I've a few questions ROFL1): is there presently a good, working 3DS Emulator available?2): If so, is it able to play older DS games as well?3): if not, is there a more reliable DS emulator other than DeSmuME 0.9.7?>_< I know this info is out there somewhere, but I am still not use to using these forums and stuff.

Replying to #1

1.No
2.Probably
3.Yes

K, so whats the best DS Emulator right now?

NO$GBA (although it started off as a GBA emu, hence the name). By itself it's pretty good, but you should get NO$ZOOMER to go with it too. Adds a lot of features etc.
There's a good guide with links here.