Start off by saying this looks to be a fantastic new feature. 
With the DevPacks being used across multiple projects, If I change it in one project then will it change in another project that it is used in? Appreciate that once a template is dragged into a webpage it is not linked. I am just referring to the DevPack contents.
If the above is the case, it would be useful to be able to lock the DevPack against changes. Rather like has been suggested for Globals: Can we PLEASE be able to LOCK Globals - #4 by logrunner
How is a DevPack Component add-on differentiated from a DevPack template add-on when it is being added? What is to stop a DevPack Component add-on being added to the list of Templates?