Looks like AGS does crash on the Galaxy Tab S, so it's not a memory issue. Wish I knew how to overcome it. Looks like both JJS' and monkey's versions crash at the same places, more or less. Would be nice if there was a way to help debug this. (I tried writing the log, but all it shows is room changes, nothing to indicate why the crash happened.)
DarkestCrow, I'd suggest trying the latest version from the first post on the thread. JJS' version has a menu button in games which can bring up the keyboard. Choose an Android keyboard with arrow keys and it should work.
monkey, why can't you use the same menu button code as the JJS version? That worked fine for me on both the Nexus 7 2012 and Galaxy Tab S, and they have completely different menu button management (the Nexus 7 doesn't have physical buttons, and the menu button shows on its action bar, while the Tab S has physical buttons and a long press on the recents button can bring up the menu), so I imagine that it's a generic solution that should work well on a wide range of devices.