> Getting an early momentum advantage such that you get some good entrenchment before the clones attack, can make all the difference...

But in this case, I think that FastChat (the new app) is the clone and Skype, Zoom, Webex, etc. are the entrenched players in the videoconferencing market. FastChat is essentially a clone of Skype, Zoom, etc. because it does the same thing that they already do - it just has one improvement that may or may not make a significant difference to potential customers. Thus, FastChat would be trying to enter an already crowded market whose players are large, public companies (and whose most profitable customers are large corporations).