How to download SWIFT: If you have Ubuntu or Linux Mint (or another Ubuntu-based distro), click
here and follow the instructions.
If you have a different version of Linux, download the .tar.gz from
here and compile it yourself.
If you have Windows or OSX, I will soon upload a custom VirtualBox image with SWIFT installed. In the meantime you can install on Ubuntu in VirtualBox. Platform builds will arrive sooner or later.