Yes, there are definitely play-based preschools that market themselves using that exact term. What's available in DFW area, I don't know, but surely there are choices near you in such a large metro area. You could call up some of the gifted schools in your area and ask them for recommendations on play-based preschools. Testing specialists may also have lists.
Both of my children go/went to a play-based preschool, and it has been a great fit for both of them, for the exact reasons you mentioned in your post. And no, you are not radical. Your DS will be in a formal learning situation when he gets to K, and you can deal with all that then. Right now, as our preschool says, the work of childhood is play, and play is serious learning. Our preschool's philosophy is very well-stated, and it's *exactly* what they do at the school
http://lumpreschool.org/philosophy.html. You may also want to post on the Regional board to see if anyone different might take a look at your post and have some info for you.
