I'm looking to switch from my ATT family plan to Sprint's family plan in May, and I have my eyes set on either the Evo or the N1. Assuming that the N1 is available by then, do you think I would be able to get that phone on family plan, or get it and then add a line and SERO it up? Or should I just get a different phone in May and hope that I can use new the 30-day return policy to change to the Evo if it becomes available in early June?