Another CES has come and gone, giving us more new-product announcements than an army of tech journalists could give their proper due. As usual, the big players grabbed the lion's share of the pub, while smaller companies garnered less, including Canary Wireless and its second-gen Digital Hotspotter HS-20, a Wi-Fi detector/analyzer with a scrollable, backlit LCD (96 x 64) displaying network ID, encryption status, signal strength, and other details of 802.11b/g/n networks.
The 2-ounce HS-20 run...