I like how one commenter put it, what Windows Phone lacks in functionality it makes up for in usability. IMO, even without higher end specs I find that the WP UI is far ahead of iOS and Android. The things I do on my phone are the same things I can do on any device but I enjoy doing them way more with Metro and live tiles. I think I understand why people say that WP doesn't need dual-core. It's because WP is so smooth and intuitive that you never notice it's not a dual core phone, even when compared to much more powerful devices.