I find in the GA version that the keys on the both sides of the space bar do not work. As I read a few weeks ago that these keys would be made work in GA, I checked something. I found that while the key-up events for these two keys are surely collected by the guest system, the key-down events are not. This may be the reason why these do not work in japanese language input. I think this has to be listed on the bug-tracking queue.
