And also see these credit-card-sized hardware OTP solutions:<p><a href="http://www.schneier.com/blog/archives/2008/12/credit_card_wit.html" rel="nofollow">http://www.schneier.com/blog/archives/2008/12/credit_card_wi...</a><p><a href="http://www.dailymail.co.uk/sciencetech/article-1085642/The-new-credit-card-keypad-promises-fight-online-fraud.html?ITO=1490" rel="nofollow">http://www.dailymail.co.uk/sciencetech/article-1085642/The-n...</a><p><a href="http://www.emue.com/site/home.htm" rel="nofollow">http://www.emue.com/site/home.htm</a>