Here's our pick of the most useful and interesting apps from Microsoft's Windows Phone 7 Marketplace hub
Developer: Sunlight Labs
Talk about timely, given the new faces in Washington. The Congress app is almost literally a 'window' into the US Congress: using your location, it can list your federal legislators by your location, by state, by name or by committee. Each one has a profile, with photo and other info. It tracks the official's tweets, or tweets about the official and it creates a list of linkable relevant videos. It's currently only available for US users.
Photo: Architect of the Capitol.
Rated 4 out of 5 stars by users. The app completely adapts the full eBay experience to the Windows Phone 7 user interface, apparently successfully: users repeatedly praise its speed and functionality. A few say some navigation is 'rough around the edges'.
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