Hi everyone! I had a question about my Sprint service. I am currently on the SERO plan (love it) and I recently got a Palm Centro 755p for my birthday. I normally use my Katana DLX but I'm thinking about activating the Centro to see how it is and see if I like it. If I do, is it possible to bounce back and forth between the two phones? I travel a lot so I figure I could use the Centro when I'm not at home and then switch back to the Katana when I get back. Is that possible or would I rack up some weird fees or something for switching so much. thanks bunches!