Comment by AnonJ

What's wrong with that? Many great products started at companies which are not "supposed" to do that as their core business. Pivotal Tracker is one thing that immediately sprang to my mind. Why do you want to strictly limit what a company is working on, and potentially kill great ideas anyways. I believe as long as they're still functioning, their game development business is probably totally fine. The same applies to a person: I don't believe if you work on something as a full-time job you're then not allowed to have your hobbies, side projects(some of which are quite huge in scale) and personal interests. That would be horrible.