Still nothing on the website, last news is the split with SpaceX and they still list SpaceX as a "partner" status.

Randy
The said that they would make a decision in the early spring. It's not spring yet.
Stratolaunch and SpaceX have amicably agreed to end contractual relationship
MOJAVE, CA, December, 2012 - Stratolaunch and SpaceX have amicably agreed to end our contractual relationship because the current launch vehicle design has departed significantly from the Falcon derivative vehicle envisioned by SpaceX and does not fit well with their long-term strategic business model. Moving forward, Stratolaunch has engaged Orbital Sciences Corporation to evaluate and develop alternative solutions with the objective of arriving at a design decision in the early spring timeframe.
I was going off the comment from Orbital in the AvWeek article about "We expect more information to be available in the February 2013 timeframe."
Obviously it could be longer, but I bumped now, just in case they do announce something.