as explained in the french medias for a few days :
starting september 2007, all tps customers (on hotbird) will be contacted to get their dish modified for astra reception only, they will also get new hardware, maybe only smartcards in order to become fully operationnal canalsat customers..

The project is expected to last one year and a half.
Then canalsat will most probably drop hotbird and stay on astra only.
It probably also means that all tps related encryption systems won't be used by canalsat anymore..