The closest we got to a fully open source android release was probably in the Nexus one days with some 9 proprietary blobs and , worse, user space support progr

The closest we got to a fully open source android release was probably in the Nexus one days with some 9 proprietary blobs and , worse, user space support programs (IIRC the compass calibration routines, annoyingly.) , all for various chip/radio support.