I have reinstalled the iMac and set up parallels on it. This allows to run the Mac osX and Windows Vista in a separate window.
And there you go, it allows to install, GeoTime on a Mac. So far I was running it on a windows machine.
I tried a few things, including importing the whole data set from the UrbanDiary project. It works ok, but seems to be slower than the installation on a Windows machine. I will test it some more and see if it is worth working on it on Mac. Next step will be to get the arcGIS integration to work with it on the Mac.
Image by UrbanTick