Nokia has come up with a solution to allow you to charge your Nokia mobile phone from the USB port on your laptop or PC. The Nokia CA-100 is compatible with the 2.0mm charger connector, whilst the CA-70 works with 3.5mm connectors.
In fairness, it’s not particularly revolutionary. I’ve been able to charge my iPod and my Palm PDA via USB for ages. One thing that does interest me, though, is whether a mobile phone can be fully charged in this way, as I know some devices can’t be completely charged unless connected to a mains adapter.
Here’s the product page for the CA-100 though there’s no word on pricing.