Abcd1234 has ported the NetHack variant Slash’EM to Nintendo DS.

Release notes:

Well, after spending the entire summer doing basically nothing with this thing, this last weekend I had a bit of inspiration and built ports for the two major NetHack variants, SporkHack, and Slash’EM. Now, these are *definitely* ALPHA releases… I’ve barely had a chance to do any playtesting with these things. But I figured, I might as well get them out there now and see if any low hanging fruit is caught.

http://forum.gbadev.org/viewtopic.php?t=14618&postdays=0&start=120