A way to capture real-world wi-fi situations, this can only help to make OS X and iOS better.
--- On an unrelated note ---
I can't quite get used to the reversed tab interface control. It seems more gimmicky than improvement. But I'm not yet using 10.7, so maybe somebody who is can chime in on this. It almost seems like they want to provide a "physical" movable control for touch interfaces, rather than a series of AM radio-like push buttons.