As Acer pointed out,

I wanted to use the Classic GUI (if that's how you call the classical interface) on OSX because some features of GRTensorII works better on the classical interface. I also prefer the Classic GUI over the Java interface...

Since the Classic GUI isn't available on OSX, I thought I could install the Linux version of Maple on OSX to get it.

Is there a way to have the Classic GUI on OSX other then dual booting or having Linux as a virtual operation system on OSX?

Will the Classic GUI be available on Maple 12 for Mac?

thanks