Ignored keypresses when typing on iPad

This video illustrates how the iPad is ignoring certain keypresses when typing in Pages. See http://tmik.co.uk/?p=734 for the full write-up. The video has been slowed down to 12.5% of its original speed. When errors occur, you'll often see keys being pressed on the keyboard, but not appearing in the document. Out of the 435 characters in the text, 30 keypresses are ignored.