A user on Fred Morrison’s blog with some "insider insight" (aka Microsoft employee) responded to a post regarding SharePoint 2010 WF (Windows Workflow Foundation) 4.0 development, mentioning of what the next version of Office will be code-named and when its planned to hit the market:

- Office 14 (or SharePoint 2010 to use your words) won't be supporting .NET 4 and WF 4.
- Office 14 still uses workflow foundation 3.5 and .NET 3.5 and you wont get the same benefits compared to when you use only .NET 4 solutions in custom development.
- The workflow platform for WF 4 was indeed rewritten from the ground up and is a much better platform, however, we will have to wait for Office 2013 (or Office 15) before we can use this for SharePoint development.
- WF4 does provide some out of the box sharepoint activities, but these are very different from SharePoint's workflow and is built by the WF team, rather than the Office 2010 team.

It seems Office 15 was the obvious codename for the next Office version, as Windows 8 is following Windows 7 and, "Office 2013" would put the next version of Office right in line to meet the projected 3-year development cycle Microsoft adheres to, reports Stephen.