Yup. But I use 3 anyway.3 looks ugly on the 635, everything is too small and the list of all apps when you swipe right also become smaller, the icons become smaller, which makes it even more uglier.
Switched to 3 recently on my 920. And even though I have a lot of small size tiles, I still can't fit it all on the screen without scrolling... Did a recent hard reset, and after logging back in with my account, the ship restored 135 apps. I've purged about 25 or so since then, but it really seems I have too many apps... BTW, I'm not using a single double wide tile on my start screen...