The URL will become http://fon.gs/link-name
Leave empty for a random one.
For example you can transform:
http://maps.google.com/maps?f=q&hl=en&q=empire+state+building &layer=&ie=UTF8&om=1&z=18&ll=40.748724,-73.985592
into:
http://fon.gs/empirestate
