I don't see why he would regret it. Ubuntu and Android aren't really competitors (at least not yet). The phone version of Ubuntu is built on top of Android.

I don't see why he would regret it. Ubuntu and Android aren't really competitors (at least not yet). The phone version of Ubuntu is built on top of Android. They're both open source. Maybe eventually they'll be "open source" competitors like KDE vs. Gnome or something like that, but Ubuntu is a long way off from that (I'm not knocking them - I pre-ordered an Ubuntu phone even though I like and have no problems with Android). If I were him, I would regret that Ubuntu is still slow to get a real, permanent toehold in the PC/laptop/tablet market - where vendors consistently and regularly include an option to have Ubuntu installed instead of Windows. I would regret that there is no Ubuntu tablet out there at all. You can't really use Ubuntu on any of the new Windows tablets (I've tried installing it on several). I've been using Ubuntu as my primary OS for over 6 years now, and what I want is a hybrid/convertible tablet that runs Ubuntu, and isn't as slow or limited or buggy as it would be if I installed Ubuntu on an android tablet. I'm not blaming Ubuntu for these problems - Microsoft and the hardware manufacturers chose to use Clovertrail and UEFI and all this other nonsense.