My project uses a log of dreg and drop, and my tests show that it doesn't play nicely with ipads. So many teachers use ipads that I have put the project on hold until I can re-work it without DnD.
Publishing to the web creates a folder of files, and downloading that folder yields a website that can be downloaded and saved on a computer or ipad that can use a browser to go through the project, so I know that part works. I just don't know if it is Safari or the ipad that breaks after I get a ways into the project. If your tests show that tablets can work with your project, you should be all right.
