Quite a view subscribers to the Office 365 Beta have been given access to their beta tenant, as I gather by following the tweets on #Office365.
For more information on Office 365, just go to: http://www.office365.com
Given the amount of questions that are raised, I just felt like posting this blog post, with first the one link that you have to go to download all official information Office 365, and that is this one: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=6c6ecc6c-64f5-490a-bca3-8835c9a4a2ea
While going through the Microsoft Exchange Online Beta Service Descriptions, a few things popped out
In the Appendix, you can find a nice Exchange Online and Exchange Server 2010 Service Pack 1 Feature Comparison!
There is a solution to customize message size limits in http://www.cloudtilities.com.