Thank for the feedback!
1. Pre-move doesn't necessarily earn more than remove. In both cases you could end up receiving half of the chips from a certain pile (either the pot or the other player). Did the description on the game page clear this up at all? But agreed that within the game it's not very clear what's going on.
2. Oh, it's 100% random :). I'm sure there's some game theory analysis that would make for a pretty challenging AI, which would be cool to incorporate in the future. That's a great idea for local multiplayer! I was thinking it just wouldn't work since you could see the other player's screen, but passing off the device would definitely allow keeping your move secret