There was an update to the SharePoint 2010 language pack downloader to handle selecting and deselecting all the language packs at once.
This was a feature update requested by Ryan Dennis (@SharePointRyan). Ryan originally created a powershell script to download ALL the language packs, I took his idea and made this tool where you could pick and choose the ones you wanted. It is only fitting to have this checkbox to again download ALL of the language packs.
Thanks Ryan.
If anyone wants to request other features to be added to this utility, let me know via Twitter (@matdesmarais).