Microsoft is expected to announce the commencement of the long-awaited Office 12 beta program possibly as soon as next week, according to testers. But for now, it’s not clear which Office products–including a new Office 12 for Windows Mobile SKU–will be part of the initial test round. Tentatively called “Office 12 for Windows Mobile,” the product will consist of viewers for Word, Excel and PowerPoint (along with some very limited editing capabilities for Word and Excel)–plus a new “OneNote Mobile” version of Microsoft’s OneNote note-taking application. The mobile Office 12 suite is being designed to run on smartphones and PDAs.