Amazon has just announced a new Kindle Reader for the PC (no MAC yet) and you can sign up now to be notified when it is ready for download. Click
HERE to sign-up for the Kindle PC Reader. Some may consider the lack of Kindle newspapers, magazines, and blogs on the Kindle for PC to be an issue, but I can already read most of those on my PC anyway.
* Get the best reading experience available on your PC. No Kindle required
* Access your Kindle books even if you don't have your Kindle with you
* Automatically synchronizes your last page read and annotations between devices with Whispersync
* Create bookmarks and view the annotations you created on your Kindle
In addition to the PC reader, those using the iPhone App should upgrade - it now has highlighting, notetaking and (for those using the original app) can be locked into landscape or portrait mode, just as the DX can, which is good for reading in bed or on a boat.