This URL:
http://markimoore.com/relief-well-status-as-of-june-26-2010/
states:
The primary relief well, drilling by Development Driller 3, is currently at a depth of 16,400 feet. Crews have begun cementing and casing the well liner. Meanwhile, the ranging process continues in order to ensure that the well bore target is met.
This has got to be good news!