QNX has a big advantage in that from userland it's basically a Unix. You can develop on it completely self-hosted on a desktop PC. The GUI's pretty good; it eve

QNX has a big advantage in that from userland it's basically a Unix. You can develop on it completely self-hosted on a desktop PC. The GUI's pretty good; it even comes with Java and Eclipse. They've downplayed that recently, alas, but I believe that if you hunt around on their website you can find a bootable CD. I think platform support has slipped a bit so you might have trouble making it boot. Way back when, there was a QNX demo floppy, which was a bootable 1.44 MB floppy disk which contained a full GUI, web browser, dialup modem support, etc. It'd run on a 386 with 8MB of RAM. http://toastytech.com/guis/qnxdemo.html http://toastytech.com/guis/qnxdemo.html QNX is pretty awesome. Edit: Here's a similar writeup of the bootable CD, using a more recent version of the GUI. http://toastytech.com/guis/qnx621.html http://toastytech.com/guis/qnx621.html