Great album. Personally, I like Humans as much as Swans, but Islands is my definite favorite. Jeph was flogging Return to the Sea as a top album of 2006 months ago. If you haven't followed up, I think he also recommended Aloha's Some Echoes, TV on the Radio's Return to Cookie Mountain (which is super-awesome), Wilderness' Vessel States -- all of which have a somewhat similar sound in different ways (to greater and lesser degrees).
For similar recent eclectic pop, also see Figurine's Skeleton, and Tapes 'n Tapes The Loon. Of all of these, I'd actually put the Figurines and Tv on the Radio efforts ahead of Islands because they offer a little more aural variety, but that's just me. I think Figurines' Ambush is definitely one of the pop tracks of the year so far.