Door Into e-books

I was just catching up on the fail anon meme and came across the very useful bit of info that Diane Duane is working on getting her books into ebook format, including the Middle Kingdom, aka Tale of the Five (aka "Door Into...") series.

The first two books are already available on her site at very reasonable prices (US$2.99 and US$3.99, respectively), with the third coming eventually. (Naturally, no mention of the fourth, woe.)

They're DRM-free, and are available in ePub (most readers other than Kindle), mobi/PRC (Kindle, Palm), LRF (Sony), PDF, and PDB (Palm) formats.