Switching Two Active Phones with Sprint

[ronnybej]

Hey, I don't know if this is in the right area, but I didn't know where else to put it. I have a Sprint Touch Pro right now and want a Pre. My brother actually wants the Touch Pro, but doesn't want to pay the hefty price tag. I told him I would switch once he gets it and activates his phone.

The question is: How can I switch two active lines? Can I do this online? Is there a waiting period before I can try the switch?

Thanks guys for the help.

Mods, if this is in the wrong place, sorry and please move accordingly.