An update to Compass Expert is available in the Marketplace.

Compass Expert is the only Windows Phone compass that is designed to look and work like a real baseplate compass. Use it for hiking, backpacking, orienteering, scouting, and camping.

Free Trial available.

Features:
1. Set the compass dial and rotate the baseplate until the needle is in the house.
2. See the declination for your current location.
3. Understand important concepts by reading the included guide.
4. Works while in airplane mode and with GPS disabled.

Added in 1.1:
1. Ability to add multiple users; compass settings and training saved per user.
2. Added more entries to the guide.

Direct link: http://windowsphone.com/s?appid=8d988c39-0b30-4599-ba0b-2b75ac876c4a

App.net: http://app.net/compass-expert