The new battleground for Microsoft will be netbooks. Microsoft is expected to release several versions of the Windows 7 program ranging from a starter product to a premium version. The starter kit is designed to run netbooks and may have been tweaked recently to allow more than three programs to run simultaneously. But by the time Windows 7 arrives it will compete with not only Windows XP but also new netbooks running on Linux and Google's Android software. One thing seems certain, though: There won't be a huge Vista fan club for Windows 7 to worry about.