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 with Windows Phone 7

http://blogs.technet.com/b/jocarpenter/archive/2011/10/29/customer-examples-of-windows-phone-7-working-with-office-365-exchange-online-lync-online-sharepoint-online-and-office.aspx

Active Sync Client support with Exchange

http://en.wikipedia.org/wiki/Comparison_of_Exchange_ActiveSync_Clients

Setting up mobile phones in Office 365

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.aspx to get the real steps.

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