Yes, I mean that a potential solution is to drop gestures.

I was going to mention the typing thing, but decided to ignore it for simplicity's sake. It can still detect multiple simultaneous taps accurately, even if they're on the same axis. It's only crossover movement that's affected. (Assuming my supposition about the mechanism of failure is correct.)

Another solution is to disallow gestures that cross axes. If it was good enough for the Ghostbusters, it should be good enough for Google.

For the record, I don't think that the iPhone is bad or that Android is an iPhone killer. I don't think the iPhone should be killed. Android is merely an alternative, and one I happen to prefer for a variety of reasons. Are there drawbacks? Sure. But the reasons I chose this over the iPhone more than make up for them, for me.