Good news DIYers, XBee now comes in WiFi flavors. The favorite wireless module of Arduino tinkerers everywhere is growing up and adding 802.11n to its normal compliment of RF and ZigBee options. Development kits are available now starting at $149 per board, with add-on modules like embedded or wire antennas and RF connectors clocking in at $49. It might not seem like a big deal to some of you out there, but anyone who's contemplated building a Tweet-a-Watt or a Yarn Monster will appreciate being able skip adding a ZigBee adapter to their
