The performance problems he mentions probably aren't due to a lack of JIT, but rather to poor garbage collection performance. One of the biggest problems with d

The performance problems he mentions probably aren't due to a lack of JIT, but rather to poor garbage collection performance. One of the biggest problems with developing a real-time app on Android is that the garbage collector can take 200ms at a time to run, which will kill your real time output. In order to avoid this, one must be careful not to allocate objects in performance intensive code (typically through resource pools). Unfortunately many of the standard Java library classes contain allocations that one has no control over. Consequently, for real time output, one has to throw out many of the things that make Java easier to use.