I've tried both. Well, I got OpenBSD 3.9 installed on Parallels trial version. Works great. Xorg in 1280x800 mode on my MacBook works great. Firefox installed, posted on some forums. Happy Slappy.
I got OpenBSD 3.9 installed on "Q" - http://www.kju-app.org/kju/ and it seems to be working well also, but I went for a network upgrade to OpenBSD 4.0 so I haven't actually tested things like Xorg and all that. It appears it will also work very well, given what I'm seeing.
Has anyone actually done a good side by side comparison of these? Parallels is $80. Q is $0. I was actually about to shell out $80 for parallels then I saw they had a trial license. When doing some research on getting x.org to go 1280x800 (vs. 1024x768 or whatever it wanted to default to) I saw some posts about QEMU and tried it.
So here I am, asking why people would pay for Parallels Desktop. Aside from a bit of a prettier interface, I'm not seeing much worth my money here. I'm a n00b to this stuff, so I could be overlooking something huge. I'm hoping someone can tell me what that something huge is, if said creature actually exists.
Of course, kju-app could totally blow up on me here in the next day or so, or not work the way I want it to, then I'd come to an understanding without much input from the mighty Intel fritterers.
Parallels is a virtualizer, whereas QEMU is an emulator.