How about a "Touch Pad" from Always innovating. They claim a 10 - 15 hour battery life. Can operate as a netbook style device or slide out the monitor from the keyboard for tablet style interaction. http://www.alwaysinnovating.com/touchbook/

or the (ironically google) translated version of the article can be found here:

http://translate.google.com/translate?u=http%3A//t ech.sina.com.cn/i/2007-04-08/18351454194.shtml&hl= en&langpair=zh%7Cen&tbb=1&ie=GB2312/ ...most interesting? "Google accused illegal use thesaurus and expressed strong indignation."

wow.. ;-)