DARPA's latest initiative is far from revolutionary -- we've seen a number of installations aimed at improving communication in times of war -- but the Wireless Adaptive Network Development (WAND) project looks to "exploit commercial radio components, rather than custom ones," to "keep soldiers linked with each other on the battlefield." Essentially, soldiers would be equipped with $500 handheld radios that would form far-reaching ad hoc networks that could "shift frequencies and sidestep interference" to make communications more pervasive and more reliable. Interestingly, WAND is reportedly set to be demonstrated as early as January of next year, but there's no telling how long it'll take for the project to become fully operational.

[Via Slashdot, image courtesy of SOCOM]

It looks like the people of San Francisco are going to have to wait a little bit longer before they can spam their friends with memes while sitting in the middle of Golden Gate Park. The WiFi blanket deal which would see Google and Earthlink teaming up to deliver a citywide network to the Bay-area has ground to a halt after a round of somewhat "unfriendly" statements from Earthlink concerning the plans. David Noyola, speaking on behalf of the San Francisco Board of Supervisors (which has been overseeing the project) said that the network's rollout has stalled "in the shadow of comments," made last week by Rolla Huff, the internet provider's CEO, who expressed reservations over municipal wireless deals. Breaking points in particular seem to be the city's request for changes in data speed and privacy controls, and its desire to downsize Earthlink's contract on the network from 16 years to eight (significantly reducing the company's time to earn a profit). The internet provider now claims that they are doing a "detailed review," of their business model regarding the project, which the company says will not provide "an acceptable return." Obviously a lose-lose situation for the laptop-toting citizens of the City by the Bay.

One of the big criticisms that's been leveled at the much-vaunted OLPC project is that it's missing one key element: internet access. Well, a pair of Sun Microsystems employees are looking to remedy that situation with the Green WiFi project, which promises to bring cheap, solar-powered WiFi to developing countries. The project's modeled on MIT's Roofnet wireless mesh network project (and isn't the only one, either), but takes things one step further by making each node solar powered, meaning that the network could be extended virtually anywhere. They've also taken care of the other big hurdle: price, using off-the-shelf gear and open source software to keep the nodes down to no more than $200 each. Although still in the prototype stage, the team says they're going to start deploying their first grid network in India later this summer, PVC or not.

[Via Treehugger]

Network appliances don't always offer all the firewalling features a user needs -- you know, the advanced port blocking and security procedures we'd like to keep our little home network fiefdoms secure. In today's How-To we'll show you how to build a firewall out of an old PC with a live Linux CD and some spare ethernet cards. It's the perfect use for that machine with the dead hard drive (or no hard drive at all).