That's how Linux Devices
describes a new game, WiFi Army, shown at CES, for the still in the early days Android platform. It's from W2Pii and is Java-based.
[Once activated] the game scans for other users within 300 feet and sets up a direct WiFi connection, swapping photos of each player for identification purposes. The user tracks the other player via continually updated GPS coordinates on a Google map interface, and when a positive identification is made, the user can shoot to kill using the phone's camera. The photo is then uploaded to the W2Pi site to see if there's a match, and if so, the user is awarded points.
The game is free but enhanced weapons and armor require micropayments. Also of note: for the beta just 500 slots per city are available.