http://www.siliconrepublic.com/new-media/item/24419-google-pulls-gmail-app-from/   Office 365 story with Blackberry http://www.zdnet.co.uk/reviews/saas/2011/11/07/blackberry-business-cloud-services-for-office-365-40094370/   Office 365 story...

http://community.office365.com/en-us/b/office_365_technical_blog/archive/2011/11/07/service-availability-in-office-365.aspx

http://office.microsoft.com/en-us/sharepoint-server-help/document-collaboration-and-co-authoring-HA101812148.aspx

You can package it up and deploy using SCCM or another software distribution product.  In short you would download the .exe, extract it then package as normal.  Or you can read the Technet article http://technet.microsoft.com/en-us/library/gg998766...

    http://www.microsoft.com/learning/en/us/certification/cert-cloud.aspx