Google Apps added the option to migrate the messages from your existing email accounts if you use the business or the educational edition. "Administrators use a self-service wizard to easily and securely transfer existing email data from an IMAP server over to users' Gmail accounts on Google Apps. Gmail will put messages into conversation threads, display the original sender, recipient, and date of messages, and convert existing mail folders into labels. (...) This tool currently supports email servers with an IMAP interface."
You should be able to access a new Gmail address book when you compose messages by clicking on "choose from contacts" link. Unlike the old way of adding contacts to a new email, now you can browse through your entire address book or use the search feature to add more users at a time. The address book includes all the users from your domain. The feature has already been available for a while in Google Video and Google Docs.
Google promises a completely new layout for the document management interface of Google Docs, but it's unclear if this will be available for everyone. "Soon we'll complete a visual overhaul of Docs & Spreadsheets that will make it much easier for users with dozens or even hundreds of documents to search, locate, and organize their documents."
Among other updates, you'll be able to add more gadgets to your start page, including the Google Talk Gadget.
Google, Google Apps, Email Migration Tool, Featured News