There's a not-terribly-interesting history here about how the plus sign wasn't allowed on certain digital platforms when we released our first album, and so we got stuck with the ampersand, but the short version is: Both are us. The plus sign is more recent, and all future digital distribution will use the plus-sign version of the name. Following ButterBean's release of the remastered and expanded Everything I Think I Know Is Wrong this fall, our entire catalogue will be available on the plus-sign channel.
Sorry, that may have been a little bit of lede burial. (All in the service of including a clip from The Commitments, which is one of the greatest music movies of all time and you should totally go watch it now, or at least listen to the soundtrack.) EITIKIW is indeed getting a remaster and rerelease. We're also adding four tracks recorded in the same Workshop Jones sessions: "Candy," "Midway" (with the lyrics we updated last year at Mystery Street), "Half," and "Grace" (never released). Final release date to be announced shortly.