I use an HP iPAQ hx4700 PDA (640x480 screen) and TheSky Pocket Edition to drive my German Equatorial Mount for a one night set up away from mains power. When I travel to an observing site with mains power and want to set up for more than one night, I always use a Notebook computer as the display is so much bigger and the software has many more functions.
At home, I use the Notebook almost 100% of the time.
Cheers
Dennis
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