Exactly as 
expected, a Virginia judge ruled against (
PDF) Attorney General Kenneth Cuccinelli's fishing expedition at the University of Virginia.  The Washington Post 
reports:
Judge  Paul M. Peatross Jr. ruled that Cuccinelli can investigate whether  fraud has occurred in university grants, as the attorney general had  contended, but ruled that Cuccinelli's subpoena failed to state a  "reason to believe" that Mann had committed fraud.
The ruling is a major blow for Cuccinelli, a  global  warming skeptic   who had maintained that he was investigating  whether Mann committed fraud in seeking government money for research  that showed that the earth has experienced a rapid, recent warming.  Mann, now at Penn State University, worked at U-Va. until 2005. 
According to Peatross, the Virginia Fraud Against Taxpayers Act,  under which the civil investigative demand was issued, requires that the  attorney general include an "objective basis" to believe that fraud has  been committed. Peatross indicates that the attorney general must state  the reason so that it can be reviewed by a court, which Cuccinelli  failed to do.
For his part AG Cuccinelli 
says he is going to pursue the effort based on the guidelines of the ruling:
Cuccinelli said  in a statement that he will send a new CID to 
UVa to  continue his hunt  for proof that 
Mann defrauded  Virginia’s taxpayers in  obtaining grants that funded his climate change  research.
 
“While this was not an outright ruling in our favor,  I am pleased that  
the judge has agreed with  my office on several key legal points and has given us  a framework for  issuing a new civil investigative demand to get the information necessary to continue our investigation into whether or not fraud has  been  committed against the commonwealth,” 
Cuccinelli said.
Even so, I'd guess that this is the last we'll hear from Cuccinelli on this subject.