HTC have released Locations app with offline map features for HTC Windows Phones. I just installed the app and there are a whole range of maps available to download. With the app you get turn by turn navigation, either by foot or by car with a metro UI.
I gave it a quick try an seems to work well, it’s not as good as Google Navigation on my Android phone but it could be handy to have.
Founder of The Digital Lifestyle.com and host of The Digital Lifestyle Show. Started podcasting in 2005, Windows Entertainment and Connected Home MVP. Lover of gadgets from the Raspberry Pi to the iPad, Android to Windows 8. Also a massive motor racing fan