Not unlike the camera bulge, this "fix" is weird and somewhat un-Apple. I found myself wondering if a better solution might emerge farther down the road. But I suspect that this feature will appeal to the same folks who frequently use the multitasking gestures that have been built into the iPad for a long time. It's the iPhone's equivalent of a keyboard shortcut; something for those power users who just don't want to be slowed down.
Now we are six
There are plenty of other interesting features that I didn't get a chance to explore, such as the M8 coprocessor's new features (sorry, no stairs to climb in the hands-on area), the new camera features, or its voice over Wi-Fi capabilities. But rest assured, when we get our own hands on the phones, we'll be putting them fully through their paces.
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