When the project allows me to go hosted, then the problem is already solved. Thrice. When it does not, but I still need versioning, a wiki and some issue tracking and I don't feel like sporting my masochist hat, good news for me: there's now a tool that does it all and it's a single binary that needs no setting up.

And I don't know if there's any hosted Fossil service around, easy to use or otherwise.

The only hosted Fossil service I've seen so far (only been investigating Fossil since I read this article) is Chisel: http://chiselapp.com

I have not tried it yet, however, and have no idea how easy it is to use.