sl-cxx0 main hardware is absolutely identical to that of other non-linux pdas - identical to top quality and performance other pdas, more exactly.
Sharp design is one of the best, not only aesthetically, but concerning to solidness and quality of materials.
the possibility of bricking a zaurus are the same on any other top-pda.
People here in the forum usually use pdaxrom, or cackoQt, and somone loves "playing" with libraries, kernel, and hardware support.
Just like reflashing my 3d board on my desktop with modded bios, those are risky tasks, but I'll never say "Vgaboards ltd. boards are not reliable, because I bricked mine while reflashing the bios"
These clamshell are very well made, and absolutely reliable.