The document discusses several mobile operating systems including Android OS, which is an open source software stack from Google used on smartphones and tablets; BADA, a proprietary OS from Samsung first used on the Samsung Wave; Blackberry OS, a proprietary RIM OS popular for corporate device synchronization; iOS, Apple's mobile OS only available on Apple devices; MeeGo OS, an open source joint OS from Nokia and Intel; and Windows Mobile, Microsoft's mobile OS for smartphones and devices based on Windows CE.