there is an issue on Sense's SMS app (and actually in Android SMS app) and non-GSM 7-bit characters. This ticket on Android's Google Code explains it well : code.google.com/p/android/issues/detail?id=6522 (seems like that has a new user i can't share "real" links).
It's kinda annoying when you're not an english user (a simple accent use 60 chars).
Seems like a simple option for turning off unicode should work...
My question : is it possible for you guys to fix this in roms ? Maybe easier by updating stock sms app ? Not possible at all ?
Thx in advance for your replies !