A few interesting points to take away from the interview are:
1) Windows 7 release is penciled in for 2010, baring that in mind we are in the very early stages of development and this may not actually be a cone of silence just the lack of a hard feature list.
2) The approach now appears to be, under-promise then over-deliver. A good strategy.
3) Windows 7 is a 'manor' release, i.e. not quite a major release but more than a minor release.
Paul concludes by saying:
This makes me wonder: Is the major release wording a hint that major new end user functionality is coming? Or are they simply pulling an Apple and claiming that every release is a major release now?
I think it's a hint at major new functionality being built on the existing code base. The integration with Cloud Computing, altered security (I have to believe UAC will get an overhaul even though I don't believe it should), new UI and a deeper integration of virtualisation with the desktop environment could lead to a feature list that could be argued as a major upgrade.
Another reason i don't think Windows 7 will be a major upgrade is the close relationship between Server 2008 and Windows Vista. The work that went into bringing these two systems closer will not be thrown away. 7 will have the same Core as Vista but it'll feel very different.