What “success” was that? Sure it had some modicum of success with Win CE/Win32/and .Net compact framework but success was fleeting. The development environment was nice but they ended up completely killing backwards compatibility with the newer versions and abandoned all of the enterprise/ruggedized devices. The last version of Visual Studio that supported then was VS 2007 while there were plenty of $1000+ ruggedized devices and kiosks that still ran Windows CE - I developed for them back in the day.