I bet Android has a lot of room to improve not just by improving garbage collection but by decreasing garbage creation. The compiler can do a lot of optimizati

I bet Android has a lot of room to improve not just by improving garbage collection but by decreasing garbage creation. The compiler can do a lot of optimizations to reuse objects instead of allocating new ones. I don't know what the state of the Android JIT is, but Sun's JIT took many years to incorporate some basic-seeming optimizations. One thing that could be done in the meantime is to rewrite performance-sensitive Android UI code in a way that eliminates object allocation. In Java this would result in horrifying code, but it might be worth it, and they wouldn't necessarily have to use Java.