Wet Wireless
Very funny to find wireless everywhere :-))
From Gizmodo:
Possibly the weirdest use of wireless technology yet is a new wireless sprinkler system that's coming out in May from a company called Digital Sun. The X.Sense creates a wireless mesh network using moisture sensors strategically inserted into your lawn that keeps track of when and how much to water. Best of all, the wireless network is encrypted, lest anyone try to hack your sprinkler system.