Palm Treo 700p has arrived!

The Palm Treo 700p has arrived in the States. It looks really nice, but I don't think that I would use all of the features, of course it would be nice to play around with them though. Now, since I'm going on a summer internship in the States, should I bring my Motorola Razr V3 and get a US phone plan with a new SIM card, or should I leave my phone home and get a brand new phone and test it out? What should GadgetMan do?