I don't know if this has been mentioned yet... but the S3 has wireless.  I've got mine in hand, saw the wifi tab, figured I would try it out.  Bam!

So, while I don't see any place to hook in an antenna, having it sitting right next to my router, that's kind of irrelevant.

I'm getting ~450GH/s on p2pool (my local node).  Not bad at all!