I'm not using pdaXrom at the moment, but really want to, ever since I happened upon the desktop screenshot thread and ran into limitations as to what I could do with the sharp roms (anyone know about mapserver here?)
I tried though, on my 750, loved it, but basically ran out of space for the apps that I needed on there (apache2, php5, mysql). Now, before everyone tells me about all the great things I can do installing stuff onto sd card etc, I figured I'm too new to linux to really get into the different types of formatting that I would need (it's all windoze boxes where I come from), and I use my zaurus too much every day to go without these things for the time it would take me to learn how to do it all and clear up the inevitable bugs/glitches/screw ups on my part.
So, now the prices are coming down for 860s, I'll probably get one of them and put pdaXrom on that, as it looks the business!
Jo