LANGUAGE=44 emerge openoffice fails to select UK english - build falls back to default 01. Basically, 44 is missing from the l10n case statement(s) in the ebuild.
I think there is no difference between 01 = ENUS and 44 = English(GB). It is missing, because there is no Environment Variable for it in the offizial openoffice language listing.
he's right, i'm goign to be changing a comment on this later