Thanks, Rocky. From what I have found on the forums, Ting's HTC One does not have the SIM slot unlocked. I don't know what would be involved in unlocking it, but I imagine there must be a way.
One thing that stymies me about the whole HTC One and Galaxy S4 thing is that from my knowledge of technology, there must be a way for Ting to format the ones they are selling to work on Ting, and this should be able to be done to all HTC One and Galaxy S4 phones as long as they work on a CDMA network, even if it takes flashing a different firmware to the phones.
I also don't see why Sprint would restrict these phones from working on Ting, since anyone buying one to use on Ting is paying full retail price (about $600) for a brand new phone since it has to be a device that isn't active on Sprint's network to BYOSD.
There aren't many places I have found to buy Sprint phones, and most of them require that you sign a 2 year contract with Sprint to get the phones. I'm sure if I walked into a Sprint store, I could say I would like to buy a new HTC One for retail price without a contract, and in return I would likely get a look of surprise, but they may just sell it to me just for the revenue. However, finding a network provider to use it on would be rather difficult.
With my current provider that I am looking to get away from for many reasons (SIMple Mobile which works on T-Mobile networks), I could walk into several different stores that sell T-Mobile phones, tell them I want to buy the HTC One without a contract for retail price, move my SIM card into the new phone and change some APN settings on the phone and voila.
Anyway, I know none of this is Ting's fault, and I'm certainly not intending to complain, it just seems there is still quite a bit of inequity with the cell phone market in spite of Ting's attempts to level the playing field. Most likely what I will end up doing is to buy Ting's HTC One and just be happy with it until I start doing the travelling that I intend to do, then I will look for an inexpensive phone to take with me when travelling since who wants to take a $600 smart phone with them on vacations or trips, right?