
The WiFi sniffer is a credit-card-sized device that detects nearby WiFi signal, sparing you the pain and embarassment of hauling around your laptop. Wishlist: distinguish between open and closed nets, allow for an external antenna, log with GPS co-ords, check for DHCP leases and attempt to route a packet on every detected network. Still, it's cool enough that I'd buy one.
(Thanks, Jong!)