The Writ has not yet flooded the Virginia Court of Appeals. Of course, it has only been in existence since 01 July 2004.
There is also a concern that law in this area will be developed in response to a lot of poorly drafted, ill-reasoned motions from pro se litigants in prison (jail house lawyers). Most likely those fears are correct. Desperate (or bored) men in prison will probably be the source of 95% of these motions and the courts will probably begin to view them with the same jaded eye as is used in viewing habeus petitions.