This is a useful method if you need to rely on anything being device unique. I'll be going over how I did this (in Ruby,) alternative methods, gotchas, and som

This is a useful method if you need to rely on anything being device unique. I'll be going over how I did this (in Ruby,) alternative methods, gotchas, and some other practical uses and considerations at Boston.rb in January http://bostonrb.org/presentations/month/January-2013 http://bostonrb.org/presentations/month/January-2013 (it'll be live streamed over Google Hangouts)