<<Curious it would take TEVA this long to do this...why not do it right after the CAFC decision?>>
In fact, that is precisely what they did -- that is, the reissuance application is old news. From the Mylan brief opposing TEVA's cert application:
3. Subsequent proceedings before the Patent Office On August 12, 2013, Teva filed an application with the United States Patent and Trademark Office (Patent Office) asking that it reissue the ’808 patent to correct the error in the claim language identified by the Federal Circuit. See Appl. No. 13/964,856, portal.uspto.gov/pair/PublicPair (search by application number). Reissue of patents to correct an error requires an oath by the applicant admitting the existence of the error to be corrected. 35 U.S.C. § 251; 37 C.F.R. §§ 1.63, 1.175; Manual of Patent Examining Procedure §§ 1402, 1414. The reissue application remains pending before the Patent Office.
Evidently, the hippo has not quite reached 30 kph.
The nub of TEVA's argument is that the Federal Circuit reviewed the lower court decision that the 808 patent was not indefinite "de novo", that is, they did not "defer" to the findings of the lower court as they generally would for factual matters, being of the view that the question is a legal one. The standard of review for claims of indefiniteness is one that has been, and is being litigated in the Federal Circuit, indeed, one of the arguments adduced by Mylan/Momenta legal team is that the Supreme Court should wait for the full panel of the Federal Circuit to review the question, as they are scheduled to do.