We don't usually
associate
RCA with new
and innovative technologies, but we
think
know they're on to something with its Airnergy power system,
which harvests energy from WiFi signals. Shipping this summer, the
pocketable dongle picks up WiFi signals from the air and manages to
charge an internal battery through some magic inside. You don't
have to connect to a network, you just have to be in a place that
has signal, and it will automatically charge up. As if we weren't
intrigued already, they told us that they're planning on building
the tech into actual cellphone batteries, so you would
theoretically never need to plug in again and your device would
always be topped off. Yeah, we want.