I'm going to try to find out opti, I can't imagine laying concrete then covering it with the rubber mat. I sent an email to someone at New Hanover DG, I'll see what they say.
These look similar to the one's they seems to have used. But, I bet the height is really important so you can pack as much sand/paver base as possible. http://www.rubbercal.com/Dura_Chef_Interlock.html
These are very similar to the ones used at Plamann Park to help control wear around the tees. The grass grows through and stays; due to the mat. However, this only works about 2/3rds of the time. Again, I think perhaps the holes are too small for the grass to take root.