My wife and I ate at Cup this past weekend. It's a brand new diner/bar that just opened (on Friday). It's quite large and has a full wrap around counter service in the middle, and plenty of booths and tables surrounding. They've got a respectable menu of diner fare, bbq, and breakfast choices. The sign outside says 24hours, though our waiter said he thought that they would only be open until 3am initially. Appears they have a full liquor license, and the wrap around counter could easily double as a bar come late-nite.
We also overheard the manager/owner (?) say that the space being renovated next door was slated to be a sushi/thai restaurant.
Cup is nestled into the blocks that make up the Kauffman-Astoria movie studios, and is located on the corner at 35-01 36th Street in Astoria.