TrustKernel is invited to give a talk on TEE trends on the conference of payment product authentication, testing, attack and defence, on 22nd May, 2015. This talk shows how TEE is used in current mobile devices, how it can improve the security level of HCE payment and FIDO, and several security issues on commodity TEE implementations. We also introduce our TEE implementation, code name T6, and show its advantage on physical attack protection and REE security enhancement. We also give a brief introduction on how virtualization technology can be used to improve the flexibility of TEE. The slides can be downloaded.