SELA Developer Practice – Extensibility at the end of the second day on SELA Developer Practice ( 28th of December ) I will present a session that will focus on the .NET 4.0 Extensibility ( MEF ) and how can you use it for building composite application using WPF 4.0 . prior to this session Tomer Shamam will have few session about WFP 4.0 . each day of the SELA Developer Practice is having 3 parallel tracks, some of the tracks happens at SELA university (our sessions happens at SELA ) other...