and in addition to your $150 instant upgrade you might qualify for the $100 palm centro mail in rebate, but don't quote on me on that, go to
www.sprintrebates.com to track the rebate.
go here
http://www.nextel.com/en/promotions/...vanity:rebates and print the second link since you have Sero and wait out the 30 days. worst that can happen is no rebate, best is that you will receive another $100 via mail.