Disturbing news, though I suppose only 100 incidents out of 300 million batteries is not bad.

http://www.engadget.com/2007/08/14/n...million-devic/
http://www.nokia.com/A4136001?newsid=1146281

This is not of direct relevance to Internet Tablet owners but it is the battery that the Navigation Kit GPS transceiver uses.
You can check whether that needs to be replaced by entering the ID number here
http://www.nokia.com/batteryreplacement/en/