Microsoft Sets Whistler Dates?

ZDNet's Mary Jo Foley is reporting that Microsoft has set delivery timetables for its next version of Windows, codenamed Whistler. According to insiders, Beta 1 is set for October 11, with Beta 2 to follow on December 6. The timetables also plan for an RTM on April 18, leaving a great deal of time to ship the OS for the back-to-school season. Obviously these dates are extremely tenative and will continually shift, however it demonstrates a very quick development cycle, one lacking a third beta phase. Do you think the software giant will make it? If not, how far off will Whistler be?