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Check this video for pagination: http://www.youtube.com/watch?feature=player_detailpage&v=njn8uXTWiGg

When filtering use a canonical tag.

Check how big shops handle those issue's.

I would use rel="canonical" instead....

Check this url: https://developers.google.com/webmasters/smartphone-sites/details

you've created it yesterday. Why don't wait a bit longer? It isn't crawled yet by Google. All results of 2 days ago are in Google.

BTW: the page is very slow: http://www.webpagetest.org/result/130725_27_2XB4/. You should use at least cache