Compass for WP7 is here for those of you who are yet to upgrade to WP8! :)
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Simple and neat. Liked it
Just says "sorry your phone doesn't have a compass, try and guess which way is north instead" this app sucks.
Not working on my 630
Responsive. Updates as you turn your phone in your hand. Not a chunky delay like other apps. Just a compass. That is all. Nice.