If I buy a Treo 650 from a reseller (like TreoCentral) with a $150 service credit for a new 2 year agreement: if I don't like Sprint's service (currently a Verizon customer) and cancel my service contract within the 14d trial period, will I have to return the phone to the reseller or will I be able to sell the phone (on eBay, for example)? I wonder this especially since the resellers appear to apply the credit instantly (not a mail-in-rebate)--to get that credit, would they need to see that you actually committed to the 2 year agreement? If not, would I have to forfeit the $150 service credit?