Question: Has anyone here had any experience with running OpenBD or Railo in production? We have some legacy CF6.1 apps that need to be hosted somewhere and I'm wondering if OpenBD or Railo is stable enough for production use, won't require a great deal effort to migrate to, etc.

Answer: 
I'll chime in as the 'Adobe' guy and say that yes, both OpenBD and Railo are viable CFML engines. The main hurdles are around CFML compatibility. For the last decade Allaire/Macomedia/Adobe has been driving the CFML standard, but we've formed an open CFML Advisory board made up of various experts in the field to help drive the future of the language.

Today it seems that ColdFusion 7 is the foundational standard. From there the CFML standard seems to splinter between vendors. ColdFusion 8 added a number of exclusive features that haven't been added to the other engines and vice-versa with Railo and OpenBD. In the future, the CFML Advisory should solve this problem.

Using ColdFusion as the standard, I find the following two link to be the best places to understand the compatibility differences.

[OpenBD Compatibility](http://en.wikipedia.org/wiki/BlueDragon#Compatibility)

[Railo Compatability](http://www.railo-technologies.com/en/index.cfm?treeID=107)

Here is the url for the CFML Advisory group. They just started the site so there isn't too much info up there yet.

[OpenCFML.org](http://www.opencfml.org)
I think replacedirect.nl recently migrated their webshop to railo.