The Smashwords edition will also be available from iTunes and Barnes & Noble’s Nook store.
(Update: The preview on the Amazon web site revealed some possible formatting funkiness, so I have updated and re-uploaded both Amazon and Smashwords files. Both are now under review, which will delay things by a day or so. Fear not! The updated e-books should all be available by the weekend. Ah, the joys of self-publishing!)
(14 May 2015)