I just picked up a sl-6000 today, it was an impulse after reading about the unit here and other websites, and finding one for sale locally.
Wow.
I have benn looking for the right PDA since last December. First, I bought a Sony NZ-90 Clie. Beautiful hardware, but the crippled Sony software, and restrictive PalmOS left me asking for more. Simple things like a web browser that could deal with login popups was missing. In despiation, I bought a Toshiba PPC, an E-800. It has a great lineup of hardware specifications. Lots of memory. VGA screen. Dual card slots and USB host. For as good as the specs were, it fell short of my expectations. The VGA impilentation, with Windows Mobile 2003 SE is really a farce, text size is mismanaged. Data entry is by the screen exclusively. And the hardware ft, well, cheap.
Enter the SL-6000. This thing is everything that the other two are not, and Linux to boot! A real web browser, that can handle multiple windows. Super screen. A better keyboad the the sony (even though it is smaller). Real text editor, that can recognize a freakin' .txt file.
Just thought I would share my "conversion".
Chris