I don't think there will ever be anything more secure than a well chosen password.

Biometrics really aren't the best of solutions, from articles such as this and others that I have read almost every biometric security device has been fooled. Fingerprint scans have been fooled by methods such as these, face scans follied with mere still pictures and video loops on a laptop display, and I remeber mention of a way eye (retina) scans have been fooled (I'll try searching for the article).

Anyway, my point is- you only have one face, one set of fingerprints, ect. - Once those are comprimised you can't go changing them.

Biometrics can also arise privacy concerns, do I really want my face and fingerprints stored on file?