I have been using the developer version of websphere mq to do some research for my organization. It does not seem to have any licence cost or trial period.
I wanted to know what are the limitations of the developer version which would make it not suitable to be used in a production environment.
There is no support available for developer edition as described here: http://www-03.ibm.com/software/products/en/ibm-mq-advanced-for-developers. On production system you have to use licensed version.