I just noticed a healthy uptick in Tunescape sales that I was at a loss to explain. Turns out that it is currently in the Top IGN Picks list in the Indie Games section of the Xbox dash. Nice!
I'm working on getting more detail into my islands, so adding trees was an obvious next step. To draw them efficiently, I'm using model instancing - a technique that allows you to render multiple instances of the same geometry in a single draw call.