Recipe according to Alton.
Update: After a few hours in the freezer this is essentially cantaloupe-flavored snow.
Tony, Diane, and I gave Flip a first try this evening. We started out with a couple of sides: the french fries and the sweet potato tots. The fries were tasty but the cheese on them moved quickly to the chewy side as it cooled down. I thought the tots were tasty (if in need of a dash of salt) but Tony encountered a lovely bit of plastic wrap around one of his.
After our server suggested that the burgers were on the small side (“a little bigger than a slider”) and one per person might not be enough, we ordered five for the three of us. He was clearly not to be trusted — the burgers are pretty much full sized. It did give us a good opportunity to sample the variety available, though. (To save you from the horrendous flash-based site the menu is here.)
All of the burgers came on a griddled bun which added a good bit of flavor (and really made some of the lesser ones).
Overall, I’d say recommended if for nothing else than the steak tartare burger. There’s definitely some room for improvement and hopefully they’ll find a good groove once they’ve been open more than a week.