The "after" screenshots don't seem to have anything in common anymore. Some of the apps look like Android, some look like Windows Phone, some look like Palm webOS.

The previous iterations at least shared a few button styles and navigation bar styles, but now it seems like everyone has taken the opportunity to reinvent those too.

It's certainly ok by me that app developers are taking more liberties in making their apps look unique. But if I were running the iOS show at Apple, I'd probably be worried about this development: if the visual presence of the OS disappears entirely from apps, it becomes that much less scary to pick up an Android phone because the apps won't look any different there.