Google allowed to work with different accounts at the same time

Google is testing the ability to work with multiple accounts simultaneously in one browser - for example, read mail from multiple Gmail mailboxes in different tabs. So far, this innovation applies only to Gmail, Google Calendar, Google Reader, Google Docs, Google Sites and Google Code. Later they promise to connect other services. The restriction on the use of new functionality is the inability to work offline Gmail.

The source is an unofficial Google blog .