USB Rechargeable AA Batteries

Finally. I found this online today.

It's a pair of AA batteries that can be recharged using the USB port on your computer. I can imagine these would be great for travel, especially for your cordless mice or a ton of other things. I know I'm buying some (the box of 10 perhaps) so I can recharge one set of batteries while using another in my new Xbox 360.

The box of 10 is a bit pricey at 89.95 pounds (about 160 dollars or so?) so I have concerns about battery life. But other than that, in the long run, it might even be a good investment.