Hi guys, hoping you can offer some input. I'm looking into moving over to Ting and getting a smart phone, and I'm looking online at phones compatible with their service. For example, on Ebay there is a brand new HTC EVO 4G under no contract. If I buy that, will I be able to just call up Ting and get the phone working from there? Sorry if this is a dumb question, but I'm totally new to smart phones and I hear things thrown around like SIM cards and ESM / ESN numbers and I just want to make sure I'm buying the right thing. I might get a nicer phone later, but I want to get an older one first and see how it feels / see how good Ting's service is before I commit to that. Any input would be appreciated.