PocketDOS

One way that a PDA can be an essential diagnostic tool is to convert its
operating system to Linux. PocketDOS (http://www.pocketDOS.com) has
created a product that allows you to take your handheld or PocketPC and
emulate DOS, Linux, and a host of other operating systems. The advantage
of this tool is that you can use the convenience of a small device to
empower it to run hacking tools to penetrate the defense of your WLAN
and determine your security gaps before they present a problem for you.
Handheld computers (PDAs) for the most part use either Palm OS or
Windows CE. The PocketDOS application works under all versions of
Windows CE (including the newest PocketPC 2002 OS). With respect to
this application, Windows CE has extended the definition of the personal
digital assistant to encompass a series of commercial applications.

Windows CE has evolved to the point where there are a number of
wireless network interface cards that enable these devices to log into a
network seamlessly. PocketPC 2002 offers integrated support for Wi-Fi
connectivity as part of its core OS offering.