We will constantly update this topic as we explore HTML features. You are strongly encouraged to help us and others by sharing what you have created, tips & tricks, reporting bugs, etc. Some features might work well on one platform but not the other one. Therefore, please make sure that you test the HTML widgets on both Android and iOS platforms.
Our tests so far indicate that the following features need extra attention:
Flash content (is not supported on mobile devices completely)
Embedded audio and video (some video players can behave differently on different platforms and others may not work at all, every video has to be tested individually)
Text input on Forms
The canvas element
In general many of the new HTML 5 elements are not supported but it might be the case that few things may work.
For more information please refer to the following tutorial:
Video Tutorial 4: How to use Dynamic Widgets