Here's a quick cook's tour of the new assemblies in pnetlib:
cstest.dll, csunit.exe — unit testing framework and front-end.
DotGNU.Images.dll — image loading/saving routines (bmp, jpg, png, etc).
DotGNU.SSL.dll — SSL support routines (usually accessed via System.Net).
DotGNU.Terminal.dll — routines that augment the 1.2 extended console.
I18N*.dll — localization handling, used internally by mscorlib.
ICSharpCode.SharpZipLib.dll — compression/decompression routines.
libc64.dll/libm64.dll — C library.
OpenSystem.C.dll — low-level C support routines (used internally by libc).
OpenSystem.Platform.dll — platform-dependent type definitions.
System.Drawing.*.dll — drawing toolkits for X, Win32, and Postscript.
Xsharp.dll — C# binding around the X11 libraries.
