Is WPF yet another GUI toolkit like WinForms with some enhanced features? What other GUI toolkits are available for .Net? I am new to .Net and I believe that WinForms is a GUI Toolkit as per: http://www.mono-project.com/Gui_Toolkits
From (the very first sentence of) Wikipedia's page on WPF:
Developed by Microsoft, the Windows Presentation Foundation (or WPF) is a computer-software graphical subsystem for rendering user interfaces in Windows-based applications
So ... yes.
Other GUI toolkits for .NET include