Lisa Grade, editor at PDA Buyer's Guide, posted her views on the Zaurus SL-C860 Linux based PDA. Very similar in form factor to the Sony Clie UX-50, "The Zaurus C860 is an elegant and highly portable Linux-based PDA that sports a clamshell design. You can use the machine in laptop mode, or swivel the display and use it in portrait orientation like a traditional slate-design PDA. It has a 400 MHz XScale processor, CF and SD slots, plenty of RAM and won't lose your data, even if the battery runs out. It has the same amazing CG Silicon display used in the C760 (only available in Sharp products) which is incredibly color saturated, bright and sharp. It also has the best keyboard I've used on a PDA."
Display: 3.7" TFT CG Silicon display color LCD, 64,000 colors. Semi-transmissive, backlit. VGA Resolution: 640 x 480 pixels.
Battery 1700mAh Lithium Ion rechargeable. Battery is user replaceable. This battery is the extended battery, Sharp also makes a smaller capacity battery.
Intel PXA255 400 MHz XScale processor. 128 megs of RAM for storage, ~ 64 of which is available to the user and 64 MB program memory.
Size: 4.25" x 3.25" x 1.0" at thickest point of hinge, .8" for the rest of the unit. Weight Approximately 9.5 ounces (120 x 83 x 23.6mm. Weight: 250 grams).
As a bonus, the article also lists similarities and differentces between the Zaurus and the Clie UX50. The Sharp Zaurus SL-C860 is not currently available in the US.