This sounds really interesting. It's not in the practical stages yet, but how convenient would it be to charge your cellphone, mp3 player or laptop without having to plug it in? I know in my house, free outlets are hard to come by, so this is something I can really get behind.

Sounds interesting but what happens when a person walks between the transmitter and the receiver? Do the die immediately or is it a slow death?

Slow death. Very slow. Depending on total exposure time, electromagnetic power levels, and other factors. And since this is a broadcast of energy you won't even have to walk between them, just put it next to your bed!
It's been noted that children living near transformers or high tension power lines suffer a higher incidence of lukemia and other cancers, blamed on high magnetic fields. Amateur radio operators too, and the FCC passed new rules concerning exposure to RF energy (and the associated magnetic fields) to combat the health risks.
I think the last thing we need is yet another radiation-broadcasting device with possible health effects.