Chat was restored with the update that came out yesterday (10/5), but it introduced a new problem: some of the touch controls don't work reliably. For instance, the first time you touch the chat window the new "type-in" box will appear, but the next time it will not. Or you'll hit the bomb release and it simply won't work. Or the second time. Or the third.
I've found one way to trigger it into working again, but it isn't always reliable: drag across the screen to change the view, and sometimes this will jog the controls to working again.
Great game, Zup, but I hope we see a new update where this bug is fixed soon!!!