The first thing WEH popped inna my head still when I saw the new Windows 7 UI was KDE 4. That's definitely not a bad thing though - KDE 4 is going to be an excellent DE, and dem seh imitation is the sincerest form of flattery. This may be a sign of things to come - now that Linux has reached rough feature-parity with its commercial bretheren, the ever-accelerating development of open-source software will put it at the forefront of innovation, with MS and Apple playing catch up.