Google has pulled a PlayStation emulator from the Android Market, citing "content policy violation" as the cause.The app in question, named PSX4Droid, has been available to download from the Market for almost half a year. Now developer ZodTTD has revealed via his Twitter that Google has suspended all his PSX emulator apps. As reported by Pocket Gamer , the developer initially noted, "PSX4Droid v2 was pulled by Google due to 'content policy violation'... Trying to determine what can be done."The developer believes that the upcoming release of the Xperia Play 'PlayStation Phone' may be the cause. He followed up, "Sony's Xperia Play must be coming soon. Google just suspended all my legal Sony PSX emulator app ids from Marketplace.""They locked me out of their service. Fair enough, but no specific reason. The timing is suspicious with no remedy" he noted.However, rival PSX emulator 'FPse for Android' has not been removed from the Android Market, and is still available for download. Emulators for SNES, NES and Game Boy Advance are also still on the strorefront.Sony's Xperia Play was originally penned for a March release, but is now expected to launch in late April or early May.Major British mobile phone carrier O2 confirmed that the delay of the PlayStation-branded phone was due to unspecified "bugs in the software."