Last Saturday I presented at the SharePoint Saturday Holland 2013 on apps and the App model for Office365. Following you can find the slidedeck of that presentation (in Dutch). In this presentation I gave a brief introduction into the experience for users and administrators and how they will have to work with Apps. Since the experience is almost the same for both onpremise the focus was mainly on the development part. For Office 365 you can use the Napa app to develop SharePoint Hosted apps, and the developer site template that is available.
I had a blast presenting and meeting all of you, so I can't wait for next year, and would like to thank the SPSNL Holland 2013 organisation, and all of you for the experience.