Well, not completely gone. Simply, all future dates are gone.

Remember the "enhancements in United First", "50% aircraft reconfigured by the end of 2008", and various other milestone dates that were posted? They're gone.

The last date on the timeline is the F checkin lobby at ORD (March 08.)

I think this may tell a lot about the pace of the aircraft upgrades... not to mention the fact that the service enhancements in C and F may or may not ever see the light of day.