As Chris mentioned, Macs are OpenGL only under OS/X.
One other consideration – a lot of macs ( all MacBooks and MacBook Air, but not the MacBook Pro ) ship with an integrated Intel graphics chipset, which of course are fairly slow compared to ATI/nVidia ones.
Hey Chris, whassap – I only recently figured out where Louth was, when knocking this quick prototype up of a 3D Ireland County Thingie…
Here’s the link – http://www.cando3d.com/test_lab/ireland
( drag the county names to the correct locations )
Of course we have to be PC – press the / Slash key to switch between Derry slash LondonDerry :)
Will add a timer to this soon, to see who gets the quickest times :)