Hmmm....I guess I would pop out my old but, reliable HTC Touch Pro 2 for a while, yea, I would miss LTE speeds but, it would avoid me having to sign a contract (losing my unlimited data) till I know what Higher end phone I have to spend $400+ on.
iOS ? No way, and Lagdrod, not sure but, if it was the only choice, I might...MIGHT
I might just wait it out on Microsoft, From the Windows Mobile days, they always had a Mobile Windows of some type (when WP was released, you could still buy WM 6.5 devices for a while). If WP does not work, then what other product will Microsoft release ?