Bink.nu is reporting that a pre beta 2 CTP build will be made available to testers on February 21st. This will be the first 'feature complete' version preceeding Beta 2 which is expected to be complete by April.
Bink also goes on to say that a Longhorn Server version is not likely to be included in this CTP.
Paul Thurrott originally reported the date being set at February 17th, whiile he might be off on the date, anywhere in that week will be fine with us.