The Page improvements include, most notably, the ability to add multiple admins to Pages, so you don’t have to rely on a single person to update them. You can add up to 50 admins. There is also a new notification system for admins and a page stat counter that allows admins to see page interaction (+1′s and circle adds).
The page features are now live, apparently worldwide.
“Managers can publish posts, respond to comments, add photos, change profile information, and even add/remove other managers,” said Google+ Pages engineer Michael Nestler. “We've also added the ability for you to transfer page ownership. Ownership of a page can only be transferred to an existing manager. To do so, click the ‘Transfer Ownership’ link in the new Page Settings panel and then choose one of the managers you’d like to transfer ownership to.”