Why is Google Chrome Canary shortened to "chromesxs"?

Download page: http://tools.google.com/dlpage/chromesxs

The path to the data folder for chrome on Windows contains ...\Google\Chrome SxS\...

What does sxs mean?


SxS means Side-by-side and probably refers to the fact that you can install and run Canary and Chrome stable on the same computer at the same time.