What are the limitations of installing Ubuntu on an Android device? I'm looking at
http://androlinux.com/android-ubuntu-development/how-to-install-ubuntu-on-android/

What are the limitations of this Ubuntu installation?  Can I install anything that runs on Ubuntu?

I'm only interested in using this for commandline tools (Ruby, gems, and Emacs).
Ubuntu running on one computer is really no different from Ubuntu running on another computer, whether one of the computers is called a "phone" or not :P

Things to consider for your applications:


Does this application rely on specific video libraries?  No existing Android phone has an ATI video chip, for example, as far as I'm aware.
Does this application rely on specific input methods or other hardware?  Not all Android devices support peripherals.  Of course, most have Bluetooth so Ubuntu should be able to manage a Bluetooth keyboard, for example, but I'm not sure whether a phone's Bluetooth stack could be so different as to not work in Ubuntu.
Does this application rely on the x86 architecture?  Most (all?) Android devices use the ARM architecture.


I would suspect that Emacs would be fine if you compiled it for the chipset of whatever device you used.  Ruby might be more complicated -- maybe it relies on specific x86 instructions, I haven't really studied how interpreted languages work in that regard -- but maybe not.

You're making me want to try Ubuntu on my phone so I can better answer these questions :P