Several sources, including ReadWriteWeb, pushed out the news that Amazon was allowing some publishers and authors to opt out of DRM on the Kindle. Most are also sharing an update where the retail giant is claiming this was always possible, they are simply making the option easier.
Whichever version of the story is true, the proof will be in how many more DRM-free titles become available in the wake of the change. Cory also posted some critical questions on Boing Boing that remain unanswered. Depending on the answers, Amazon still may be pushing a locked-in system, just relying on contract enforcement rather than the DMCA.