-Agile and Open Source – do they really make a difference in creating software?WhatsApp was purchased for 19 Billion by Facebook.They use Agile development methodologies, with open source software and programing languages, and did it all with 30 peopleHow is open source and agile improving the speed and quality of software being built today?

-Are there other good examples of positive software production using Agile methodologies and/or Open Source software/code.  What about epic failures?  Some developers love Agile, others really hate it, why?

You must make one original post to this discussion.  Think about it, do a Google search, come up with your own opinion and write  three paragraph stating what and why.  Reference any sources and add a link to the web pages you used to come up with your opinion.