I was just messing around with the virtual keyboard on an Android device. 
I'm used to using lots of ctrl and alt keys.  I'm not sure I can do that 
with this kind of keyboard.  What do you think?  Is there an easy way to 
get that to work.

For example, I tried this command:

ping my.host

And it started pinging one per second.  So far, so good, but I always stop 
that process with Ctrl-C.  I couldn't figure out how to do Ctrl-C, so I 
ended up killing the terminal to deal with it!!  ;-)