Here are the three videos concerned:
Nokia Lumia 920 vs. HTC One X:
Nokia Lumia 920 vs. Apple iPhone 5:
Nokia Lumia 920 vs. Samsung Galaxy S3:
What do you think of the results? The iPhone 5 has accelerometer-based software stabilisation and seemed to hold up well to the Lumia 920 in terms of smoothness, but was very obviously far less clear in terms of picture quality, while the One X and SGS III video was far more shaky and hard to watch.
We should be getting review hardware in just a few days and will be able to perform our own assessment of this next generation smartphone camera technology, including putting it squarely up against the previous smartphone camera/camcorder champion, the Nokia 808 PureView. Watch this space!