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To my knowledge, Bing does not officially support Google's ajax crawler implementation at this time, there is still question over whether or not Bing correctly handles cross-site canonical tags as well. That being said, Bing's long-tail traffic, especially in the UK, will represent such a small percentage of the traffic available to your site that I am led to believe that Google's implementation would be sufficient for NetMovers. Google handles these URL's just fine (as long as your implementation is correct).