Im glad to see that many large email providers have joined forces and release a new email identification system. This open standard for email will have a major impact on the way email can be sent.
See:
http://www.dmarc.org/
Google, Facebook AOL, Microsatan, Yahoo, Paypal, and other major companies are involved.
Best thing that you can do to prepare for this is to get your
SPF and
DKIM configured. Its likely that all major email providers are already modifying their systems to check incoming email for SPF and DKIM.