At UIST 2016 conference, that took place in Tokyo in the middle of October 2016, there were several technical papers presented by our academic partners and developers who had access to Soli Alpha development kit and have been exploring this new sensor and its applications.
The University of St Andrews team presented project Radar Cat that uses Soli sensor to identify various materials, e.g. water, milk, aluminum, etc :
The AIT Lab team from ETH in Zurich presented paper “Interacting with Soli: Exploring Fine-Grained Dynamic Gesture Recognition in the Radio-Frequency Spectrum” [PDF] which was a collaborative project with Google Soli team and explored novel machine learning algorithms to significantly improve gesture recognition with Soli.