that fullfilled some realistic criteria - easy to use, easy to
provision.
+
READ THIS BIT
=============
like, BUT MAKE SURE ITS SECURE (i.e. never save them on the FS,
and send them all over ssl).
+If your running on linux, most distro's have a program called
+qrencode that you can use.
+
How?
====
those that are PHP.
+Usage
+=====
+... TODO ...
+
Complications
=============