Yeah I was out in denver to and I believe change a few settings and a few panels(plug and play) and away you go. Some sims are more swapable than others I would imagine. The minnie 200 sim I believe can be changed to a 900 but I don't think that one is "plug and play" ie mx on it for a few days and recertification. I am willing to bet the NEW 900 sim can be swapped readily but I don't think any thing was bought to change it. IE right now it is strictly a 900 sim.