http://www.techradar.com/news/what-is-android-go-how-google-plans-to-bring-android-o-to-low-end-phones

[Update: MediaTek has confirmed its chipsets now offer support for Android Go, with devices set to ship from Q1 2018]

Google’s I/O Developer conference 2017 brought about the announcements of Google Assistant on iPhone, new Android O features and the launch of Android Go.