I love it! I don't have this dev preview yet :( that's so lovely to see though

Supported networks

I guess you Americans don't tend to buy your phones unlocked. Unlocked phones have all antenna profiles to them, you can choose what ever sim you want there is no limit to that, the limit is on the sim side. All my phones here that I've bought here, work whether I'm over in the state on CMDA or here on GSM, you maybe…

CMDA and GSM are cellular platforms for you phone not sim. CDMA is mostly a us thing, GSM is most other locations, when you hit another region your phone simply switches to a provider partnered or is the equivilent of that Region Ie. T-Mobile US - CDMA, T-Mobile UK -GSM. AT&T CMDA us - Vodafone GSM uk

Loving this clean update! Are you using a dev preview? Or just a lumia

It's soooo much more streamlined that android and iPhone, completely custom user preference as well. Tiles are dynamic too and show content updates regularly, you can size, colour and group. It's really extremely powerful, 8.1 allows for limiting of expanding row size as well. The custom aspect just has on there what…

Depends on the phones chipset for the antenna, if it has GSM and CDMA wave support (which most phones do these days) you can use any sim from any country. What people also forget is it's cheaper in the long run to buy a phone outright and then go on a sim only deal. A phone from the developer is sim unlocked by…