Infragistics Professional is the new name for Infragistics NetAdvantage for .NET. Have you considered Infragistics Ultimate? It includes everything included in Infragistics Professional plus Indigo.Design and App Builder.
NetAdvantage for .NET 2012 Volume 1 released
Released: May 4, 2012
Updates in this release
Updates in 2012 Volume 1
Introduced the Metro Theme across jQuery, Silverlight and WPF controls, to add sleek, modern styles to your Window 8-ready apps
Better Mobile UI, including mobile-centric List View and Rating controls for jQuery
Touch support for jQuery, Silverlight, WPF and ASP.NET controls - with larger buttons and gesture support for tapping, pinching, flicking and zooming
High-performance Data Chart and geospatial Mapping capabilities for NetAdvantage for jQuery
Addition of Spark and Point Charts to data visualization controls
More styling capabilities with the new Color Tuner for Silverlight and WPF
Gantt Printing control in the Windows Forms toolset
Compatibility with Visual Studio 2011 Beta
Now includes all NetAdvantage Silverlight and WPF controls