The Zaurus SL-5500 has a 206-MHz StrongArm SA-1110 processor, a Linux-based embedded operating system called Embedix3 from Lineo, the QT Palmtop Environment GUI from Trolltech AS, with Personal Java thrown in.
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You can go to ZaurusZone and download a version of Virtual Network Computing compiled for the Zaurus. VNC was created by AT&T Laboratories and the University of Cambridge.
VNC is sort of like pcAnywhere but differs in that it is free and often seems to be faster. Anyway, you can use VNC to view and interact with the Zaurus display while sitting on your remote Linux or Windows or whatever machine.
You also can telnet in! Yep, it's Linux so you just have to enable the telnet daemon and off you go (click here for the details of how to do this).
And if all of that isn't enough, LinkSys just sent us a wireless Compact Flash card the day after Zaurus arrived. This is one of a number of 802.11b devices for which Zaurus has built-in drivers.