Yes, smart card with inbuilt biometric sensor is next trend in payment. Some organization already have solutions for this. Most of the companies using battery powered biometric sensor. But some companies are working to power both biometric and smart card controller with RF power, no battery is required (and succeeded). Yes, we want to use such products as it provides 2 factor authentication without manually entering PIN for my transactions and limit issue for ‘PIN not required’. There are few companies already started this in the market with leading payment schemes (VISA, Mastercard) approval.

Assume that people are still afraid to use this since it is dealing with biometric data. Here is an interesting factor sheet from Thales