BlackDog is a PowerPC computer with 64 MB of memory and a 512 MB flash disc in a mini case that you can plug into any PC with Windows or Linux via the USB port. The PowerPC processor then takes over the keyboard, mouse, and screen, and starts its Debian Linux, whose desktop you can then see on the PC.
The device runs solely on USB power and also has additional biometric access control via fingerprint. Wow. A nice little hacker kit for on the go, you just need to find a host computer.
And it is completely open and hackable in terms of architecture - there is even a hacking competition to develop interesting applications for it. Although I already know what I would put on it - all the necessary network tools. I think I need to motivate the boss at the company to take a closer look at what you can do with such a device. I haven't had such a strong desire to have something for a long time.