Info is available at www.allearsnet.com deb has good information there go to search and type in ice cream social if you don't find it under dining.
We did it, it is in the revoloving resurtant in the land. You get the premade sundae and the characters go around to the tables. The layout of the resurant is GREAT for this because people stay in there own tables and you get GREAT character interactions. I think it was about $6.00 / per adult for us, and absolutely worth it. nice spot to sit cool off, good ice cream, and great characters.
Definitely worth it! My dd(10) loved it! Garden Grill is a favorite restaurant of our's and it was a nice treat to go mid-day for a treat, relax and spend time with the characters! Get a PS for the day you want. Enjoy!!
We did this late in the afternoon (3:30) and it was well worth it. We had the whole place to ourselves and got a full hour of Mickey, Pluto, Chip and Dale. One of the highlights of our trip.
We are going to it on our trip. I booked PS for it at 407-WDW-DINE. Several times were already taken. Actually we couldn't get the day we wanted. I booked last week and we are going June 25th for 10 days.