My pro account is almost about to expire

[guzie]

This post is deleted!

[First]

Here is great explanation on how to avoid mobile duplicate content by the master himself:

Does indexing a mobile website create a duplicate content issues?

Hope this helps!

[zharriet]

I had a similar issue when we added m.ourdomain.com to our website with an automatic redirect on the main page when detecting mobile devices.

I saw the Matt Cutts video before we did the mobile redirect and was surprised to see the duplicates issue show up in Google Webmaster Tools.

What worked for us was adding a rel canonical to each of the main website pages for each specific page.

There might be a better techie way to work around this..

HTH

[Dr-Pete]

Agreed with @First that you may need to change how your mobile content is being delivered. It can be tricky: Your best bet would be to rel-canonical that mobile page back to your non-mobile version - that combined with proper mobile delivery (by user agent) is the ideal solution.

Cindy Krum has a good article on that combo approach here:

http://www.mobilemoxie.com/2011/03/mobile-seo-the-canonical-tag/