Here are some delegate quick hits for a Sunday afternoon:
In the Texas caucus, it looks like the delegate count will either remain 38-29 in favor of Obama, or that Clinton will gain a delegate and the count will be 37-30.
Four vacant DNC slots are actually among the uncommitted superdelegates. Two are at-large, one is in Arizona, and one is in Illinois.
Seven superdelegates, including four uncommitted superdelegates and one Clinton superdelegate, have stated that they will support the winner of the pledged delegate count. This group is known as "the Pelosi club" of superdelegates. Given that Obama only needs 37.4% (211.5 of 566) the remaining pledged delegates in order to reach 50% + 1 in that category, those are all effectively Obama superdelegates.
Add this all up, and Obama only trails Clinton 245-215 among non-add-on superdelegates. Further, only 253 non-add-on superdelegates are uncommitted. Yet further, I know of at least two more who will be endorsing Obama this week, which will change the totals to 245-217 with 251 undecided. This, of course, does not include Michigan and Florida, since the composition of their delegations remains up in the air.
Starting to slowly wind our way toward the end. It is not hard to see how this will be over in June.