Mussi, I perfectly understand the purpose of your poll. It's not like the linux market several years ago as someone suggested: there aren't many hardware commercially available where qtopia/opie can run reliably. Basically the Zaurus or nothing at all.
The difference is much greater than a "distro war" ie redhat/slackware/suse/debian etc - here we have a toolkit fork. Distribution is just about packaging. Toolkits are about basic compatibility - it's a pain to create an application that work both on opie and qtopia. And it shouldn't be painful ! Can you imagine where we'd be today if KDE or GNOME had split in two directions? Don't forget that there're much less developpers for handheld than on the Linux desktops.
Another problem: there's not lots of space on a PDA. You could back then run both KDE and GNOME on a PC, but having both Opie *and* Qtopia on so few mb- bad idea.
Anyway as technojunkie said, the real issue is applications. "drop both PIM apps and get Ko/Pi Ka/Pi" ? You're right on the spot. Forget side issues, and do the best apps.
Forget side issues, like commercial stuff, license, "eye candy", "beautiful code", or tiny problems with either qtopia or opie.
A simple question: what would bring in more free and non free applications to the Zaurus?
I'd say compatibility. Write one application, have it run on every machine out there- whether it uses opie qtopia or something-else-rom. Don't make a hell of the developpers life.
If you want my 2 ¢ solutions, the best way to fix the situation right now is a serious change in OPIE: focus on applications and compatibility. Call in "opie3" or whatever, and create apps for qtopia 2.1 or any future version. Nothing but apps/gui stuff, and the needed compatibility parts where there are no free equivalents yet - such as a zaurus-side zsrep for synchronisation. Focus on *compatibility* - even if the solution might be not as good.
Take the best there is, like aqpkg, kopi, kapi, gaim, zsrep. etc. and make them even better. Don't tweak qte/qpe - there no reason. If there's a life threatening lib or function that's missing, a) suggest it to trolltech and if there's no reply, put in in a libopie3 that's as small as possible, with the hope it will be merged back in the next version of qtopia.
That would require a serious change of mentalities, :-/