Everything USB published a review of the Ironkey Personal Secure Flash Drive.

Quote from the review: "Without a doubt, flash drives are the largest security risk that most organizations and users have faced since the introduction writeable CDs. They can be used on virtually any PC, are small enough to go undetected by anyone, and now are large enough to carry more than four times what you can fit on a DVD. Couple this with a clumsy employee and you have a recipe to make the evening CNN blurb of how 60,000 people facing identity theft.
Security is the only way to prevent your information being accessed by someone else on your flash drive, whether it be personal data or business related. We've seen some forms of this with these flash drives, but even those can be circumvented with enough effort. The only way to ensure that your data is safe is to implement hardware encryption with password protection AND tamper-resistance. That's exactly what the guys over at IronKey have done, and they've taken it to the next level by placing a drive that meets military standards and placed it in the hands of everyday consumers. Read on as we put the IronKey 1GB flash drive through the tests and analyze its security features."
Read the full review on Everything USB.