The new-ish Amy's ice cream on Burnet has a great playscape for the 2.5 - 12 set (the sign says 3 - 12, but my 2.5 year old loves it). The playscape has three slides, a bridge and lots of great climbing entrances. Of course, Amy's has great ice cream as well, and they just opened a burger joint on the same property, so it's now great for lunch or dinnertime, too. BTW, the playscape is open even if Amy's is not. Great spot for weekend mornings.