I went to Newegg tonight to see if they are still offering the jetBook Lite.

They are not, but I did see something that I haven't seen before - a new battery for the jetBook. The price is $35.10.

http://www.newegg.com/Product/Product.aspx?Item=9SIA3H71E71105&cm_re=jetbook-_-9SIA3H71E71105-_-Product
I hate having to get rid of a perfectly good device just because the battery has gotten old! I'm glad to see these available!
Lithium Polymer battery for the unit still listed per a Google search but the list price is circa $40.00 which seems like a ripoff as the whole reader shows up for less on ebay and quite possible the replacement batteries are NOS antiques. I bought the AA battery powered Lite version for about the same price as the list price of the replacement Lithium Polymer battery for the standard rechargeable reader. IMO a better buy is probably the Lite reader and four AA NIMH rechargeable batteries. Currently a couple of ebay sellers have the Lite version listed and they appear to be NOS school surplus from some Texas school.

Importer still offers new ones for $99 but a basic new Kindle costs less and is much more modern technology including having wifi.