Hi and happy new year,
we briefly talked about the future of gretl on non-PC devices, so I
allow myself to point to this, just as fyi:
http://www.canonical.com/content/ubuntu-comes-phone-beautifully-distilled...
Of course, having an interface and a Linux kernel isn't enough to get
all the number-crunching capabilities of PC hardware, I'm aware of that.
And of course, Ubuntu is neither the only nor the first player to try
cross-device unification.
cheers,
sven