I had a 3rd party application on my Blackberry Tour for a long time that worked for Shattered Kingdoms really, really well. It was called MidPsh or something weird like that. It took a bit to get it set up and working well, but once all the setting were just right I loved it. I don't believe it had trigger, alias or macro settings or anything sweet like that, but it supported color and other cool features. I'd say it was better than telnet by far, but not quite as good as my Gmud, lol.
I never really had a huge problem with my typing when I had my Blackberry Tour. The Bold would probably have been a bit bigger and may have improved my typing a lot, but I loved it. Granted MidPssh didn't support that "up arrow" feature that most MuD clients have, so you can't cycle through your previous commands. However, with MidPssh, I learned how to type the right command the right way the first time, lol!
If you google Blackberry telnet clients, you'll find it before too long.
EDIT:
Actually....here you go. It worked quite well, although I don't know what kind of Blackberry you have.
http://www.xk72.com/midpssh/