Unfortunately, renaming the list on your iPhone will not prevent the deletion from syncing.

However, when you delete a list, the tasks in that list will not be deleted. They will be moved to your Inbox. So your task data should still be available in the web app.

You may want to try undoing your last action to undo the deletion of the list. You can undo multiple times until the start of your session. (And the undo "history" lasts as long as your browsing session is active, so if you log out, refresh, or close your browser, it will end there.) To undo your last action, click on the More Actions dropdown and select the Undo Last Action option.

Hope that helps!

no hope for me. but what if i create another list on the iphone and move the tasks on the new list?

That may help for unshared tasks, but probably will not work for shared tasks. It would be best to find those tasks in your or your contact's Inboxes and to move them to a new shared list.

Hope this helps!

I can find no tasks in the inboxes.

So I did that: on the iphone, I created a new list and moved all the taks in there. Then synced.

As result, on the webapp I have only the list tab I created on the iphone, but no tasks in, where on the iphone I have all my tasks.

It seems that syncronization doesn't work. Why?

I see that you submitted an issue report on this. We'll be in touch by email as soon as we have an update.

Thanks!