I've been playing Anglo Concertina for about 7 years, influenced primarily by Noel Hill, generally attend his summer NHICS workshops every other year. Of the various instruments I play (whistle, flute, Uilleann pipes, mandolin/tenor banjo/bouzouki), Anglo concertina is the most recent and to me I find often the most challenging, even more so than the Uilleann pipes. I think this is because of the instruments I play, the Anglo concertina is the most machine-like.
I also develop virtual Anglo and English concertina apps for the iPhone/iPod Touch and iPad, and have recently started developing a series of button accordion apps in B/C, C#/D, and D/G for both the iPhone/iPod Touch and iPad.
My main instrument is a C/G Anglo (#13) by Wally Carroll, also have a very nice Edgley C/G currently on loan to a student, as well as a 1860s vintage Lachenal Bb/F, restored by Colin Dipper that I use when playing with Uilleann pipers on sets in the key of C.
I'm interested in hearing from any Anglo concertina players in the Southern California area. There are five times as many Uilleann pipers around here as concertina players!
I run a website with free tune videos and information about my apps at: http://www.tradlessons.com