Can someone please shed some light on the topic of the purpose and the use of tasks in Nimbus?

When opening the Web-Client the "What's New?-button" flashes and makes me look: The blog says, I should try tasks in Nimbus and I can create a new one directly from the activity panel... OK. I try things out. And I have to learn that the Windows desktop client is showing the page at the end of which I did create a new task list. But I cannot see the task list because there is a version conflict! Even worse: when opening the same note on the IPhone or IPad the contents of the note is gone and I am informed that my version of the app is not able to display such sort of information...

Well...

So what sense does all this make then?

And is a tasklist not the same as a to-do-list? The Button in the upper right corner of a note is labelled "To-Do-list. But there seems to be no relation to the feature "tasklist"... is this correct.

Fortunately I am not using Nimbus for task management... 

I can understand that not all features are working on all platforms in the same way. But the current implementation is a "no-go" in my opinion. Or have I got something wrong?