MultiSpec now reads the GML header projection information in JPEG 2000 files. The test for this has been with simulated French PLEIADES data. This spacecraft was launched this past week.
The coordinate view will be displayed and default to Lat-Long units when an image window is first opened if MultiSpec can handle the projection information that is available in the image file. This was done as a time saving feature; at least it has helped me out!
More details on the update are at the MultiSpec News link.