Bryan Bishop for The Verge:

During cross-examination, Samsung attorney Kevin Johnson attempted to discredit Balakrishnan, first by trying to insinuate that two slides presented by Apple were incorrect. In fact, the images Johnson showed featured representative stills from a video the slides actually contained; the video itself was consistent with the labeling and testimony. Johnson then challenged Balakrishnan by giving a live demonstration of a 7-inch Galaxy Tab that didn’t incorporate the bounce-back feature — while neglecting to mention what operating system or skin it was running. He followed it up with a video that he said proved the Galaxy Tab 10.1 didn’t use the feature either. Unfortunately for Johnson, Balakrishnan had to point out that in the video the user wasn’t actually scrolling to the end of the web page in question — a requirement to trigger the feature in the first place.

The only reason you would do this is if you’re guilty.