It says they are free: >two free IDEs; Code Composer Studio 4 and IAR Embedded Workbench Kickstart Kickstart is Windows-only and Code Composer seems to be an

It says they are free: >two free IDEs; Code Composer Studio 4 and IAR Embedded Workbench Kickstart Kickstart is Windows-only and Code Composer seems to be an Eclipse plugin (so cross-platform, but not lightweight like Arduino's minimalist IDE).