I'm looking for a recommendation. I have emailed back and forth with roughly 10 people selling what were supposed to be unlocked android dual SIM phones that were supposed to work on any GSM OR CDMA network/carrier in the world, but I am utterly confused because they seem not to know what these criteria mean. Here are my requirements: 1) Android operating system 2) Works with CDMA 3) Works with GSM 4) Unlocked for all CDMA and for all GSM carriers 5) Can ring simultaneously (or one after the other without changing anything) on both CDMA and GSM (two different numbers) 6) Brand is unimportant 7) Preferably would have a physical keyboard 8) Doesn't matter if it's Chinese/clone 9) Used would be fine...but as long as it's below $400, I'd be satisfied new/used 10) Must work on Verizon in the U.S., and also outside the U.S. People seem to refer to dual-band as sometimes meaning both CDMA and GSM, and sometimes just two bands within one or the other. Sometimes people refer to "quad band" as both GSM and CDMA, but other times they are just referring to multiple bands within GSM or CDMA. They say phones are "unlocked" but they really mean they are unlocked for any carrier except those in the U.S. This has proven unbelievably difficult to find such a phone. If someone can point me to something they know of that's used on eBay or can find something somewhere online, or even just make a model and brand recommendation that would be great! I am not a phone expert by any stretch, and I hope I've come to a high caliber of experts here on this forum who can help me. I come in desperation! By the way, I can't be the only one searching madly for a phone that meets these requirements so there's got to be a business opportunity for someone with that....even if these are available what I'm describing (they have to be!), they sure as hell don't make them easy to find with proper keywords on Google/eBay. ANY help would be truly appreciated. Please help!!!