anyone tried this yet?
http://gimite.net/en/index.php?Run%20native%20executable%20in%20Android%20App#pd3b337d
you can get grass modules precompiled for ARM from the Debian port.
(if you need statically linked libraries I guess you have to cross
compile yourself)
qgis too, but the modular nature of grass might make it more suitable
for custom do-one-thing-well digital field notebook/data entry apps.
Hamish