Well it turns out I was wrong. The Gator Hardshell press release combined with the fact that I couldn't see the Ultra Gatorskins in the new 2010 Continental UK catalog made me think they have discontinued the original Ultra Gatorskins. They haven't, but apparently they have been renamed to "GatorSkins" only. The anti-puncture layer have been upgraded too to their new "Poly X Breaker" layer.
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Regards