Wei’s paper, Pearl-TEE: supporting untrusted applications in TrustZone will appear at SysTex 2018 in October at CCS.  Pearl-TEE is a TrustZone Operating system designed to support arbitrary numbers of mutually untrusting applications.  We hope that Pearl-TEE will enable any developer to be able to develop TEE applications and take advantage of the added security that TrustZone provides.