Microsoft plans to migrate its Windows 7 operating system to tablet devices. The company’s traditional PC hardware partners, including Dell, Samsung, and Toshiba, will build Windows 7-based tablets. CEO Steve Ballmer: Microsoft’s strengths are in the enterprise, and it makes sense for the company to adopt a business-friendly strategy in the tablet market. Microsoft’s cloud services will play a large role in the company’s tablet ecosystem, IDG News reports. Ballmer’s speech focused less on the end user appeal of tablets and more on back-end integration.”]