Do you develop on GitHub? You can keep using GitHub but automatically sync your GitHub releases to SourceForge quickly and easily with this tool so your projects have a backup location, and get your project in front of SourceForge's nearly 20 million monthly users. It takes less than a minute. Get new users downloading your project releases today!
The Loonie is still just above the US dollar as I write this. Plus, I live here so it's the easy choice... carry a (very small) poke full of gold to the bank 2x a month? Shop with it?
That would be the 'tilting shadows' option, which got my vote. It's not perfect ( http://en.wikipedia.org/wiki/Leap_Second ) but is close enough for daily life and just feels right.