Yahr. Tesco Mobile updated their UK phones to Denim today as well (530, 630, 635). Which if I'm not mistaken, now means that all UK Vodafone, O2, Tesco Mobile & Country Variant Lumia's should be on Denim now.
When Cortana comes out of Beta, I wonder whether it'll be able to work offline for local commands that shouldn't require an internet connection, like SMS, etc.?