Multiple-Account Sign-In Comes to Google
For some time now, the ability to sign into multiple Google accounts at once has been a highly desired Google feature among the sorts of people who have multiple accounts; it appears that in the very near future, that ability will be coming to you, if it hasn’t already.
The unofficial Google-watching blog Google Operating System reports that the big G is currently rolling out multiple account sign-in for the masses. If you go to your Google accounts page, you may see in your personal settings section below your email address a new option called “multiple sign-in,” which is by default off. If you click the “change” link, you’ll be given instructions for adding further accounts.
Note that not all Google cloud products are presently supported by multiple sign-in — only Gmail, Google Calendar, Google Sites, Google Reader, Google Voice, App Engine and Google Code are, although TNW reports that Google Docs support is “coming soon.”