There were two announcements from Amazon this morning (one accidental). The first, and intended announcement is that Amazon is going to start Kindle MatchBook in October. Similar to Amazon Music match and DVD program, Kindle Matchbook will allow you to buy a physical book and get the Kindle version for $2.99 or less. This will start with only 10,000 titles, but Amazon is known for rapidly expanding programs like this.
And the best part of the announcement is that this is a retroactive program. Any participating book that you purchased since 1995 when Amazon first started its bookstore will also be included.
The full Amazon press release
Also Amazon accidentally posted the New Kindle Paperwhite on its website this morning. According to the screen shots (reported at Lilliputing and Engaget and others), the new Kindle Paperwhite will have a 25% faster processor, an improved screen, a better frontlight, a more responsive touch screen and soon Goodreads.com integration.
The price is listed as the same as current model (which is currently out of stock). $119 for the Wifi only and $179 for the 3G and Wifi Paperwhite. Shipping starts September 30th if the page was accurate.