Looking for a USB Thumbdrive / Flash drive encryption solution (not TrueCrypt) [closed]

It's an all in one solution rather than software that can run on any USB stick. The IronKey seems to fit your criteria.

You may be interested in the Corsair Flash Padlock USB drive:

Featuring auto-lock hardware security, Flash Padlock is the best way to secure your data while on the go. This prevents any unauthorized access or “Brute Force” attack to the data on Flash Padlock. Users can program in a PIN, much like they do for an ATM machine, to lock/unlock their data. An easy to use keypad in conjunction with lock/unlock indicator lights makes the Flash Padlock highly intuitive to use. Lastly, the Flash Padlock is fully plug-and-play, and requires no software or drivers to work properly.

I have one of these drives, and it works quite well. Once your PIN is set, you press the Lock key, type in your PIN, press the lock key again, and the green light flashes for 30 seconds, during which you can plug it into the computer.

Because the security is hardware-based, there is no OS or software requirements - it works on any computer that can access a USB flash drive.