Here is a quick tip to help you search and find all Windows Phone 7 apps using Bing search. Just click on this URL http://www.bing.com/visualsearch?g=wp7&qpvt=Windows+Phone+7+Apps# and the apps for your local market will appear.

You can also view by category, by newest, top rated, or most downloaded (as shown below)

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Thanks to Paul Thurrott and thinkmobile for the tip!