You know what really grinds my gears? Wireless networking. It's amazing that the wireless software to manage our radios is so difficult. It does a half-way decent job, but anytime there's a problem it's completely untroubleshootable.
"New networks are found". Great. "Double click on a network to connect." Double click. Wait. Nothing. Click refresh. "You are not connected to any network. Networks: homenet, unsecured, you are connected to this network, click here to connect."
And then P2P wifi... while I'm sure it works in some crazy fashion, it's so obscure that no one uses it. Why can't it be like rendezvous, a presence-aware thing that just shows you what AP's and what computers are in the area, and allow you to connect to any at the same time?