Looks like there are now 3rd party (not OEM but built to OEM Specs) batteries available for the Sony Reader 500 and 505 series:
These guys are cheaper at $25.95:
http://www.batteryship.com/htmlos/ht...Reader+PRS-500
These guys are asking $41.95:
http://www.batterymart.com/p-prb-1-s..._campaign=Base
Anyone try these out and do they work well?
Dave