French tech website PC INpact is reporting that it got its grubby little hands on the exact release dates of Windows Vista Service Pack 1 as well as Windows XP Service Pack 3. According to a source, Vista SP1 is to be released on the night of February 18 while XP SP3 will be released on the night of March 23.
Although Microsoft has not given a tight timeframe for when to expect XP SP3, it did state earlier that Vista SP1 will be available in mid-March. The screenshots should be therefore taken with a grain of salt. It is possible that these memos were sent out before Microsoft delayed Vista to mid-March. Could it be that the Vista date is wrong but the XP one is correct?