Download the release version of the Visual Studio add-in for SQL Server Compact 3.5 and 4.0 from here
SQL Server Compact Toolbox 3.5–Visual Guide of new features
New features:
Table Builder - build CREATE TABLE statements via a GUI
Report Viewer - View, Sort, Print, Export as Word/Excel/PDF
Improvements and bug fixes:
Proper scripting of float and real values
Improved display of database size and space available
Improved VS 2013 support
Fixed some schema diff scripts bugs
SQL Server Compact Toolbox 3.5–Visual Guide of new features
New features:
Table Builder - build CREATE TABLE statements via a GUI
Report Viewer - View, Sort, Print, Export as Word/Excel/PDF
Improvements and bug fixes:
Proper scripting of float and real values
Improved display of database size and space available
Improved VS 2013 support
Fixed some schema diff scripts bugs