Don't use an AP. Use one of http://www.linksys.com/products/product.asp?grid=33&scid=36&prid=432 these!

Indeed there is a lot of potential to putting in wireless. Like being able to sync when you pull in your driveway, wardriving, p2p tunes sharing.... OOOH new idea... finally use the mic to do car-to-car bridging. Now everyone can be in the same conversation!!!, NFS mount the other empegs' hd's, etc.