Stephin Merritt has been eschewing the ukulele a bit of late (he's been playing the bouzouki in recent performances). Maybe he feels he's becoming overly associated with the uke. He strikes me as being deliberately resistant to categorization, so perhaps he felt he was becoming overly associated with the uke. Frankly, I don't believe he cares what anyone thinks. The recent cries that he's "sold out" by lending his talents to one or two recent TV commercials don't seem to affect him in the least.
Merritt has a new CD out (Distortion). Here is an interview with Faith Salle on Fair Game.
And here he is performing "This Little Ukulele". If you want to skip the interview (don't), the performance begins about 6 minutes in. Merritt plays an 8-string (thanks, HH) Mele Concert. (Aha! this explains the unique timbre.) "This little ukulele tells the truth." Indeed. Link
(h/t: Uke Hunt)