Ah, the modern age of telephone technology. It can work wonders, even if you don't have a phone. Or a table to put it on. Or a roof to sleep under. Simon and Kari Wollam learned that firsthand when they walked into Bill Graham Civic Auditorium on Thursday after another night of being homeless in San Francisco, and in 10 minutes each had their first voice mail accounts in more years than they could remember. They still have no home. They still don't have telephones. But now at least, they said, they have a tool that could help them get...