T.T. Ukuleles is a very small uke company in Hilo. We visited them after aloha camp this summer. Their instruments are nice, well made and sound great. They have a budget ( ~$250 for a soprano ) line they call Pono. I also bought my harptone case for my Raymond Rapozo tenor (I posted a pic a while back) from them some time ago. Check out their website: http://www.ttukuleles.com/
Yes we played a Pono concert - almost bought one but we had too many instruments to get home already. They aren't fancy but neither are regular Kamakas. I think it played every bit as good and sounded better than some Kamakas I've played - good volume and sweet tone and less than half the price.