Not without Quartz, it ain't
Enderle compares the Windows XP user interface to the Aqua interface in Apple Computer Inc.’s Mac OS X, which is due in March. Aqua has large rounded icons, myriad menu options, fluid application control and a turquoise color scheme. Windows XP should also be more user-friendly, modern-looking and showy than its predecessor.
“The capability is there to make it look like an Aqua clone,” Enderle said. “This is going to be a very Apple-like launch.”
Microsoft is getting nowhere near X unless they can develop something like Quartz.