Matthew Hughes'  three Henghis Hapthorn novels -- Majestrum, The Spiral Labyrinth, and Hespira -- are now available as ebooks in Kindle and Epub formats on Matt's web page. The price is $2.99 each. A pdf format file will follow soon. They'll also be for sale on Amazon and Kobo in the near future.
http://www.matthewhughes.org/the-archonate-bookstore/

As well, Matt is using Amazon's CreateSpace subsidiary to offer some of his self-published ebooks as print-on-demand paperbacks. The first two titles are the short story collections 9 Tales of Henghis Hapthorn and The Meaning of Luff and Other Stories. They're now available from Amazon and directly from CreateSpace's e-store.