Canonical opens donations for Ubuntu, let's you put money for a mobile version
As we all know, the general rule with open source software is that it is distributed for free. The idea being that the work the community puts into the platform will off-set money needed to pay workers. Of course, freely distributed doesn't mean it isn't a good idea to accept donations, which Canonical now does when you go to download Ubuntu.
phone and tablet versions of Ubuntu".
So, if you have always wanted Ubuntu on your mobile device, and not just the Ubuntu for Android system, you can vote for that to happen with your donation dollars. Of course, if you'd like to just download Ubuntu for free, you can still do that as well.