Today Product group announces that Autohosted apps will end on June 30 2014
We’re announcing today that the Office 365 Autohosted Apps Preview program will end on June 30, 2014. After June 30th, developers will not be able to create new autohosted apps in SharePoint. Apps that are currently running in the service will not be affected or shut down.
If you are currently using autohosted preview apps in a production environment, we recommend that you follow this step-by-step on how to transition autohosted preview apps to provider-hosted apps.”
Please bear it in mind if you will develop new ones because it's the time of considering to create an autohosted app. If you had one deployed please follow the guide provided here http://msdn.microsoft.com/EN-US/library/office/dn722449(v=office.15).aspx
Héctor Calvarro Martín. EMEA SharePoint Premier Field Engineer.