The latest version 2.64 incorporates a few panorama and fisheye related features - its tracker now supports tripod-shot rotating sequences
Tripod Motion Solving
>>Tripod motion solver option
There's a new solver option called Tripod Motion. It can be used for footage where the camera does not move and only rotates. Such footage can't be tracked with a generic solver approach, and it's impossible to determine the actual feature points in space due to a lack of information. So this solver will solve only the relative camera rotation and then reproject the feature points into a sphere, with the same distance between feature and camera for all feature points. >>
By "tripod shot" I think they mean approximately one position rather than strictly No Parallax Point. So this could be useful maybe for stereo panorama solving.
Also the incorporated renderer Cycles has various fisheye camera options for output (including a mapping suitable for dome projection) -- and it has had equirectangular rendering -- for environment maps etc -- for a while