Here you go...
http://www.windowsphone.com/en-us
I own a Samsung one and have been extremely happy because it's the best integration I've ever seen, seamlessly integrating MS Word, Excel, PowerPoint, etc., so I can actually work right from the phone.
And it pulls from the Web, my own files, Cloud, contacts, etc. to deliver whatever I'm looking for or working on right onto the phone.
It's a tiny fraction of the smartphone market, but I've found it to be damn impressive.
For what it's worth...
And yes, Tapatalk works on it extremely well. Tapatalk actually works on just about any phone platform -- including some of the non-smartphone platforms that integrate Web.
And no, I have nothing to do with Tapatalk. I only use it to read Net54 content...
Robert S