So far, any time I’ve submitted a new app or an update to an existing app to the iTunes App Store, all of the review activity occurred during the week and during normal business hours. This time around, my update was reviewed over the weekend, and at very odd hours. I had submitted an update to XForm on April 10th to add a few new converters. The app went into review early evening (California time!) on Friday, and was approved late evening on Saturday. That’s new for me. Normally, this would have happened during a weekday. It was a pleasant and welcome surprise.