Fresh off the build server are new image releases for Tritium and Le Potato. H3 and H5 variants of Tritium are receiving Android 7 Nougat while Le Potato is receiving Android 8 Oreo. These images require eMMC modules in order to work so make sure to grab the right eMMC modules for each respective platform.
Please note that Google does not license Google Apps such as the Play Store for single board computers. There are alternative app ecosystems such as Aptoide which you can use. The images come rooted so you have unrestricted access to the underlying OS for tweaking and installing APKs.
Make sure to follow the README.txt and use the appropriate vendor tools to flash the images. Android ROM flashing is not standardized so everyone has to rely on these proprietary tools unlike normal Linux images.
You can look for new Raspbian, Lakka, and RetroPie images coming for these two platforms in the next month.