O’Reilly tests ebooks everywhere with Dropbox sync

Innovative publisher O’Reilly, which already sells DRM-free ebooks that can be read across devices, is taking the concept of ebooks everywhere one step further with Dropbox sync.
The feature, in beta, means readers can read an ebook on any device that has Dropbox installed, without having to download a separate reading app.
Here’s how it works: Log in to your O’Reilly account and authorize your Dropbox account from there. That creates an O’Reilly folder in your Dropbox. From then on, you have the option of sending any ebook you buy from O’Reilly to Dropbox, in any format — Android (s GOOG), EPUB, MOBI for Kindle (s AMZN), PDF and DAISY (digital talking book).