Struggling wireless phone maker Motorola will cut more jobs and focus on designing handheld devices that run Google’s new open source Android operating system. The company will pare down the number of operating systems for which it currently creates mobile phones to just three: Android, Microsoft’s Windows Mobile and Motorola’s proprietary P2K platform. The hoped-for effect of these moves is a streamlining of an unwieldy wireless division, which Motorola Co-CEO Sanjay Jha was hired to clean up in August.