This time it's an Application rather then a website. And I seem to like it this way more - the UI is nice and snappy, no need to clog the dataline on the device with UI [HTML].
I am completely foregoing Pocket Maps from Microsoft - since this does Directions and always up to date Traffic.
If you have WM5 device and you find yourself looking for maps or directions [one day you would] - you need to check it out - http://wls.live.com/
You can find detailed comparison to Google maps online service here - http://www.gizmodo.com/gadgets/smartphones/windows-live-search-for-mobile-vs-google-maps-mobile-218467.php