Frost & Sullivan: Integration of Biometrics in Consumer Electronics a Fast-Emerging Trend (Yahoo)
[…]fingerprint recognition will remain the leading biometric technology used in consumer electronics due to its convenience, cost-efficiency and quick ROI. Iris recognition and multimodal biometrics will rapidly grow in the next three years due to their accuracy, although the high cost and large size of iris recognition systems may hinder widespread uptake. Voice and face recognition technologies likewise should find higher usage depending on the security requirement of the application.
More good insight at the link.