Visa Ready Summit at Mobile World Congress explores advancements in tokenization, biometrics, and more On March 1, more than 200 clients and partners attended the Visa Ready Summit at Mobile World Congress in Barcelona. The event showcased how Visa and our Visa Ready partners are driving innovative advancements in payment technology, including tokenization, the Internet of Things (IoT), biometrics, mobile point-of-sale (mPOS) and B2B digital payments.