Alright, the concept of adding Software Channels to Ubuntu is great, and very innovative, but not very easy to do. So as an idea to simplify this, and also to take advantage of Ubuntu's easy and fast software installation. It's all in the idea solution really.
I really think this idea should be implemented. Currently adding third party sources is restricted to users with greater technical knowledge. If Ubuntu is going to be used by the masses, which I hope, it should not restrict the choice of want 3rd party software sources you can install to your technical intelligence. My friends and family all use it but they call me if they want to install some 3rd party software like google earth or skype.
I proposed this idea here -> http://brainstorm.ubuntu.com/idea/24784/ and also here is another duplicate idea -> http://brainstorm.ubuntu.com/idea/21453/ and from the comments on both of these it came to my attention that making it difficult was INTENTIONAL. It is a much subtler way of restricting software than the way apple does it on their iPhone/iPad but it is the same thing. Apple actively restricts software from its central repos, the only users who can install what they want are the technical ones who can jailbreak it. Ubuntu is effectively doing the same thing by intentionally making it difficult to add 3rd party sources. I do understand that this is to help prevent malicious software from being installed, but that choice should be left to the user and not restricted by the system. Instead of intentionally making it difficult there should just be a disclaimer warning the user that the repo could contain malicious software and if they wish to proceed, it is at their own risk.