http://www.microsoft.com/downloads/details.aspx?familyid=1be1eb52-aa96-4685-99a5-4256737781c5&displaylang=en

WTL 7.1 supports building GUI ATL applications uisng Visual Studio 6, 2002
and 2003 as well as eVC3.0 and eVC 4.0 targeting Win32 (Windows 2000,
Windows XP, Windows 2003) and Windows CE 3.0 and up including Smartphone
2002 and 2003. It supplies app wizards for all 5 dev environments listed
above.

The support for Windows CE was not designed to port projects for the desktop
version of Windows as-is to the Windows CE platforms, but to allow use of
the same library, WTL, for both desktop Windows and Windows CE. Applications
for Windows CE are often designed in a different way, and they use different
platform services. WTL depends on the version of ATL provided with each
Windows CE platform, and supports controls and services that are appropriate
and supported for each Windows CE platform.

I think Chris Tacke said it best, "Sweeeeeeeet."