Anyone interested in how the internet may or may not be effect the readership (and the authors) of science fiction should head on over here for an interesting commentary by Cory Doctorow. Doctorow is the author of Down and Out in the Magic Kingdom and Someone Comes to Town, Someone Leaves Town, and is co-editor over at Boing Boing.
He mentions that he released some of his novels via creative commons so I took the liberty of checking out the download page for Down and Out in the Magic Kingdom and was astounded at the number of formats offered for the book. Formats range from the standard .pdf to formats for both the iPod and the PSP. Head on over to http://craphound.com/ to check it out.