Call Blocker for Windows Phone 7.5 [updated]

Probably been mentioned a million times, but it would be nice to have a call and text block app. I just picked up a Nokia Lumia 710 from a friend to try out for a few months. I had been considering moving from Blackberry to a Win 7 Phone, but until this feature is available, I will be moving on to something else, most likely a Blackberry 9900.

Source: http://windowsphone.uservoice.com/forums/101801-feature-suggestions/suggestions/2596028-call-blocker-for-windows-phone-7-5

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