RCA reveals Wi-Fi harvesting recharger

OhGizmo! reports on a hidden gem from this year’s CES; the RCA Airnergy Charger, a product sent straight from the future that convert air to electricity. Or rather, it somehow picks up on Wi-Fi signals and uses them to charge batteries. Apparently it does this surprisingly well, charging a Blackberry from 30% to full battery in 90 minutes. If this sounds...