best handheld chess computer?

What is the best handheld portable chess computer on the market today?
Would like good graphics and strong rating, and portablity and battery
life...  I'm aware Saitek, Excalibur, and Novag are the only
manufacturers of such computers, correct?

I would throw pocket pc into the mix, but these devices have such poor
battery life and longevity that I don't think they really qualify as
portable options.

Thanks in advance...

Borat