Some features where left out due to time constraints. The deadline was failed for the official release, and the project intially scrapped, when Rick got back on for UBB.T7 I believe he also had a deadline, not to mention the users where peeved by hearing that both UBB.T and UBB.C where going to die... So there was a rush to get it out the door and to the public for testing.
And as 7 is a complete recode, things took a lot of time; so not everything, from both products, made it back initially, but most are in, and several others are schedualed to be added as well.