I have converted Access To Insight's Sutta Pitaka to both EPUB and MOBI formats (for kindle).
Here's the Epub version, 11.17 Megabyteshttp://www.mediafire.com/?wuyhrlltt59kikn
And here's the MOBI version, for kindle, 15.88 Megabytes.http://www.mediafire.com/?aeeee0zwylbbmgd
They are both MASSIVE ebooks, 16 megabytes for the Mobi and 11 megabytes for the Epub.
It's a quick and dirty conversion using Calibre auto-convert, but it works.
The hyperlinks and contents pages work fine, but there are also links to other pages of Access To Insight that aren't in the Sutta Pitaka, so they are basically dead links unless you have internet access on your ebook.
Please share the links around and publicise them elsewhere until someone makes something better.