This is awesome, great work!
Would be useful if you could turn swiping ability on and off from within a tab. For example, if you are a few levels deep in a tab and you don't want the swipe to go to another tab - or you want to use swipes for something else, you could turn off tab swiping and turn it back on when you are back to needing it. ion-menu has this ability.
Also, a function to more easily open a specific page in a specific tab and have it slide into place. Current solution of finding the root nav child nav selected index and pushing a page there is overly complicated. Would be better if you could just import the tabs module into any page and then control it directly, like ion-menu.
Another thing would be if somehow you could refer to tabs by their name rather than index. That way if you change the order of the tabs, it doesn't break all your code.