Also try http://fiddle.tinymce.com to customize the editor's toolbar. It works very well. Here's an example.
If you want to remove the 300ms delay on touch devices, try the SwiftClick script that can be found on this page: http://fofwebdesign.co.uk/freebies_f...swiftclick.htm
Notice how everything responds instantly - a tap on an arrow or the active-area play/pause toggle - Nice.