I doubt this will surprise anyone, but I tried construct on parallels on a mac and it doesn't work too well. The parts that don't work seem to be related to the video memory - I'm no graphics programmer but I'm guessing parallels' still experimental implementation of hardware acceleration is grabbing textures from the wrong locations, because I'm getting OSX folder bits and other random stuff from other apps in the sprites at runtime. Interesting and irrelevant, tho I thought I would mention it for the curious.
Thanks for trying it out, interesting to know Construct's compatibility. Well I guess since Macs dont have DirectX (they use OpenGL right?) then its DirectX implementation just isn't good enough. It's not really our fault. If it works on windows then a decent virtual-windows should run it too, but you have to give them credit due to the difficulty of writing a virtual machine.
I wonder if its better to wait for virtualisation software to improve rather than manually port the runtime/IDE? If say WINE runs it fine, there's no real reason for us to go to the effort of a port... I haven't gotten round to installing any Linux yet. (dont shout me down Linux fans )
I'm still looking forward to when Construct can be truly platform-independent, not just able to be emulated or recreated by software on a target platform (which is why I'm so excited by timtim's project). Platform independence means much more than seeing it run on linux or mac, but practically any platform we can dream up and have the time to implement.