Launcher certainly does - where do you think that Google Now prepares it's data? Launcher without Google Now is part of AOSP. Both Calendar and Email are avai

Launcher certainly does - where do you think that Google Now prepares it's data? Launcher without Google Now is part of AOSP. Both Calendar and Email are available in AOSP, Play Store has their binary builds for those that for some reason do not have current Android version. They can have at least current apps.