Not as a way to set up the file so that multiple uses can open and access the file at the same time. If you have multiple users, you need to host fileMaker using either FileMaker Pro or FileMaker Server on the computer where the database file is located.
You may want to investigate FileMaker Hosting services offered by a number of companies.
Ok, thank you. To my opinion, with skydrive, dropbox, google drive, etc. coming up, this is something Filrmaker should investigate. Thanks a lot!
Yes, you can connect FileMaker databases or queries to native Office 365 / SharePoint Online lists via ODBC end synchronize the data via the Layer2 Cloud Connector as described step-by-step here:
The solution connects Office 365 / SharePoint to almost any other data sources as well.
Hope that helps.