HomePlug AV finally starts to appear in gear: The 2.0 spec of the powerline networking standard was in place more than a year ago, but products started to appear only relatively recently. Zyxel offered up its products last October, but it's taken a while to see major brands follow suit: Linksys finally announced their product today, the Register reports. There are competing, proprietary standards made by firms like DS2, that can't interoperate with HomePlug AV. The standard's trade-group backer, the HomePlug Alliance, however, might finally gain some traction with multiple firms in the marketplace with devices. We'll see: The Alliance's products page only mentions 1.0 and their list of products for sale don't distinguish between earlier and AV designs.