OLED-Info published an interview with OLED reseller Densitron. Densitron says that they hope to begin selling 7" AMOLED panels, by the end of August.
The largest panels available in volume today are about 3" in size. The 11 inch OLED TV from Sony is not really a mass market product and does not count here.

Quote from the review: "I had the chance of interviewing Elijah Eco, manager of product division at Densitron. Densitron has been in the displays industry for over 30 years and is well known for offering custom display and complete product design. The company sold the other 2 division it had, gaming and Digital signage, a couple of years ago and the management decided to re-focus on displays.
Densitron have always believed in OLEDS and they have been building up their knowledge on efficient design applications."
Read the full interview on Oled-info.