Those of you with iPhones - CC & OC App
If you have an iPhone download the app called LegalHeat (all one word), it costs $1.99 but it is worth it. It gives you a list of each state and it's laws regarding both CC and OC. It rates each state from 1-5. 1 being poor, 5 being great. It covers both OC and CC. The ratings are not the same for each state. For example FL gets a 5 for CC but a 1 of OC etc...
You pick an option first, CC or OC. Then it gives you the list of states. You select the state and it gives you a run down of all the laws and shows the actual statues prohibiting or allowing XYZ activity, what is off limits etc... All with a handy dandy map of what permits that state honors, and what states honor that state.
It also has transport laws and cites the federal interstate transport law. It's a pretty handy app. If you have an iPhone I recommend you get it.