Thanks for the insight.
1. Regarding the battery life, have you managed to get the figure for the non-LTE Nvidia Quad-core variant?
2. In some markets, the non-LTE Quad-core variant has a "Premium Pack" that comes with a pair of Beats Audio SOLO headphones...
A friend of mine has got it (at about C$100 more than the just the One X). While he told me the audio quality is typical Beast Audio character, the build quality has a cheap plastic feel - may not be as good as the regular retail models.
3. Here are the photos captured by the Samsung Galaxy S II GT-I9100 next to you...
... vs the HTC One X