Well, the house finally passed a bill that essentially would make all states who issue concealed carry permits, honor permits from any state. This would take a lot of the guess work out of the national travel problems that current concealed carry holders face.
Currently only Illinois and DC do not honor any form of a concealed carry permit meaning that your current permit would be valid in the remaining 49 states if this bill were signed into law.
This still has to go through the senate etc and in an election year like 2012 this bill could be a topic that comes out in some debates!