I want to buy an ARM Chromebook since it was announced, but as today, I still have not one, and maybe I'll never have it. Why? Because I live in Spain, and ARM Chromebooks still have not been released here
:(. I don't know why Google punish spaniards not launching it here, but I also don't know how they pretend to have big sales if they do not launch it everywhere and make big advertising campaigns.
It can be a good idea if it is used as a complementary system, used ONLY for a few selected packages, like for example non free ones. Non free packages have the problem that sometimes they become a real pain to get working, when the libraries they depend on get outdated, and are not available in the repositories of the distro you are using. As Ubuntu continues moving away from the free software ecosystem, I think this is hardly a surprising move.
Another reason to ditch away closed source in favor of open alternatives. Maybe $10.000 would be a good start to pay a coder to release an entirely open source one.
Just call rms to release all its fury. Jokes aside, I suppose you can request help from the Free Software Foundation: http://www.fsf.org/ Clear GPL violations, even this relatively small ones, should not be tolerated.
Comparing it with the RPi, this one has more memory, a faster processor, a lot of GPIO pins, etc. But the lack of an Ethernet port, an HDMI output, an internal and an internal flash makes it less attractive for me.
I really don't get the point about coding on a tablet. Why bother doing it when it will always be easier to do it in a "traditional" computer. Sure you can create contents using a tablet, but tablets are designed for content consumption, not for content creation.