Just like Jerome Mingo said, we don't have a problem with people developing modules offering similar functionality or serving the same purpose. It is important, however, to ensure that there is a degree of unique added value besides what's already available in UNA Inc Apps. I understand that it will be often difficult to identify that "degree" of difference, but we have to make a call somehow and ensure that we don't have a whole lot of clones in the Market. While Jerome Mingo is a known reliable vendor, there is a risk that allowing basic copies would open the floodgates for vendors with lesser integrity. Hence, we have to ask Jerome to resubmit the modules when there is more unique functionality available. 

On the other hand, I also have to admit that we will have situations when we will have to include features into our apps that overlap with the functionality of some 3rd party modules. This is never an intentional "idea grab" though. Pretty much all the new functionality we add now is driven by custom development orders from our clients that choose to allow their new modules/features to be added to the package and save on future updates.