Rackspace is being sued over its Rackspace Cloud Notes app for iOS, in a lawsuit that also includes claims again several other Texas companies, including Petroleum Geo-Services, PlainsCapital Bank, Texas Instruments, Schlumberger Technologies, and energy giant TXU. All of those companies have iOS apps which, apparently, rotate their screens.

via Rackspace goes on offense against second patent troll in two weeks | Ars Technica.