We have a serious issue to resolve with delays in typed characters appearing in text fields. The following video was shot on a high speed cam. In the "Stress Test" section you see the problem most clearly: https://www.dropbox.com/s/0785zq5ijfznug8/FFOS_KeyboardCompAnalysis_20130331.zip FFOS appears to stop printing selected characters in the text field until input activity has stopped and all previews have disappeared. This is easily encountered in day to day use when using two thumbs. The keyboard seems to lag causing the user slow down their text entry so the keyboard can catch up. This makes the keyboard feel slow and unpleasant. Goal: Selected characters should appear (print?) in the text field within 100ms of a key touchend (?) event. Irrespective any other simultaneous keyboard activity (eg: key preview being visible, another key being pressed, etc).

Margaret, I recall us having conversations in November about the multitouch implementation, and how to deal with simultaneous key presses. Do you think this issue might be related?

Nevermind, found the earlier bug. Closing this as a dupe and merging with prior conversation in bug #827811