Hello,
using T9 in Czech is weak because of small worldlist. If you cannot use android keyboard dictionary, please could you dump the wordlist from aspell? I could not do this myself, please it would help very much, see this:
http://fileformat.wordpress.com/2007/11 ... ictionary/
and the dictionaries:
ftp://ftp.gnu.org/gnu/aspell/dict/0index.html