A concern exists that the Amazon Kindle file format is proprietary and locks consumers into the Amazon service. Fictionwise supports the Amazon Kindle. According to the Fictionwise FAQs, "As of December 2007, over 15,000 MultiFormat titles are available for Kindle."
Why Doesn't Fictionwise Sell All Titles for Kindle?
We would love to, but Amazon.com makes it impossible for any other eBook retailer to sell big-publisher eBooks that require DRM encryption for Kindle. Oddly, this even includes another major eBook retailer that is owned by Amazon themselves!
We suggest you open a support ticket at Amazon.com asking them to change this policy. They could very easily allow other retailers like Fictionwise to sell Secure Mobipocket titles onto the Kindle device. Amazon.com allows other print-book merchants to sell through Amazon's site, so why shouldn't they allow other merchants to sell eBooks onto Kindle?
Source: Mobility Site.


More...