I found something that people on here might be interested in.
It's a kickstarter project at the moment, so doesn't yet exist...but it's met it's funding target and I'd be interested in maybe pledging to the project...

All looks very neat.

http://www.kickstarter.com/projects/332 ... ne-pedal-a

A lightweight generator to charge your phone, lights, and removable battery pack as you ride. Pedal power by you, for now or later.

A little snippet:

What's in the box?

Included with the Atom are some accessories that will get you up and charging in no time. We provide the generator, the removable battery complete with an embedded USB plug, a 3-ft. ribbon cord with adhesive backing for carrying power from the generator to your device, the under-seat USB power plug where you will plug in your device, an allen key for tightening the USB power plug, and hook and loop straps (as an alternative mounting method to the adhesive for the ribbon cord). And that’s it! No other tools needed, except whatever you use already to remove your rear wheel.

I can't quite tell but will it work with a disc brake? ... in the pic it looks like it might not.

s8tannorm wrote:I can't quite tell but will it work with a disc brake? ... in the pic it looks like it might not.

From the kickstarter page:

NOTE: Bicycles outfitted with disc brakes may have the option of installing the Atom on the non-disc side of the front wheel, provided that there is 20mm of space between the front dropout and the hub flange. Our product is not yet optimized for use with disk brakes; but rest assured that a future model is in the works for this application.

Single speed and fixed gear bicycles with flip flop hubs will work if the non-drive side cog is removed and the previously mentioned space requirements are met.

NOT Compatible: Unfortunately, coaster brakes (brakes that are engaged when you pedal backwards) are not compatible with the Atom. Currently, we have not found solution to this problem.

and

Currently the Atom is not optimized for disc brakes. The path to adapting the Atom for disc brakes will entail moving the product body from the rear axle to the front axle. Due to the nature of how disc brakes reference the calipers on the frame, there is simply no room for the Atom and the brakes to coexist in the same space. As a work around, you may be able to utilize the non-disc side of the front axle as our point of access onto the bike. This varies however from bike to bike. As we transition the device to the front, the form factor will be adapted as we design for durability, protection from impact, and other elements that the front axle placement presents.

There's weights, weather proof specs, battery capacity specs and other bits and pieces on the site.

Seems considerably better engineered than the thing nokia came up with. http://www.theregister.co.uk/2011/02/28 ... kia_dc_14/