Just saw this from EA.

EA Slashes Prices For July 4th Sale (http://toucharcade.com/2012/07/03/ea-slashes-prices-for-july-4th-sale/)

I'm sure more will come up...

EA and Warner Brothers have a 4th of July sale, all Apps are $0.99 or free

You can pick additional details and the links here (http://www.iphoneincanada.ca/app-store/ea-and-warner-bros-4th-of-july-sale-all-apps-are-0-99-or-free/)

Hipstamatic is on sale for 99¢ (http://itunes.apple.com/ca/app/hipstamatic/id342115564?mt=8)