Throwing my +1 on iOS tab reordering!
I would like to add closing tabs to the feature request. For example a long swipe left would work well. It is the standard iOS delete gesture.
I have multiple tabs open at all times and the tab select button configured to be visible. The tab dividers are awesome, but the inability to reorder or delete tabs impedes many useful workflows.
I have gone so far that I manually edited the workspace-mobile.json when the situation became unmanageable. JSON is just a pain to edit manually.