Is there a UK English dictionary for the Swype keyboard?
Using the version of Swype that comes pre-loaded on a UK Galaxy S, I can long-press on the "Q" in the top-left of the keyboard to get a list of languages pop-up. The top two options here on my phone are "UK English" and "US English".

If I switch between the two, and then swype through "colo[u]r" (obviously you have to swype across the "u" to get from the "o" to the "r") I get "color" as the result in US English, and "colour" as the result when set to UK English, so it would seem that there are two separate dictionaries.