"There is no escrow build," one source told me Friday. "There are just some bugs to fix. Beta 2 is going to rock." Friday, this source predicted that a delay of a week or so was inevitable. But by Sunday, this rumor was confirmed by a second source: Windows XP Beta 2 is going to slip another week, from March 14 to March 21. But this delay, as it were, is based on internal schedules: Publicly, Microsoft has only committed to shipping Beta 2 in the first quarter, so it technically has until the end of the month to save face.