I checked some YouTube videos of iOS 9 Beta 1 and the size's haven't been changed at all. Perhaps it just looks different for yourself?
No, they were def different, I have complained about this from the beginning, that I found it disorienting. I just looked this up in youtube and there is a very slight size difference in the apps, now they are DEF the same size.
This vid shows how it used to look prior to this new PB, it is VERY obvious there is a change. Maybe you are using a DEV (not a PB) build so this has been around for a bit, but this IS new for us PB users.
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