Gizmodo has one of the better roundups of the impact that today’s Library of Congress statement that assesses what each of the six exemptions to the DMCA means to the average Joe, erm Gizmodo reader.
The big ones are: jailbreaking and unlocking your smartphone are both legal and ripping your DVDs for noncommercial use is legal.
DRM Buster FAQ: What It Means For You
Interesting stuff, both in practice and in precedent.