No, they would augment all PRs with announcements on Facebook.
Quote: MADISON HEIGHTS, Mich., April 15, 2013 /PRNewswire/ -- Creative Edge Nutrition, Inc. (OTCQC: FITXD), a nutritional supplement company focusing on active lifestyles today announces The Securities and Exchange Commission issued a report that makes clear that companies can use social media outlets like Facebook and Twitter to announce key information in compliance with Regulation Fair Disclosure (Regulation FD) so long as investors have been alerted about which social media will be used to disseminate such information. See link below
So basically they will still put out PRs. I am guessing that this means Bill will announce info on Facebook/Twitter THEN issue a PR as the market isn't checking anything but the PR wires for news.