I would recommend you post this under the blackberry thread with title "CELL BLACKBERRY BIS DOWN"
Unfortunately I am not using CELL C Blackberry BIS service but on Vodacom - wouldn't trust CELL C until majority of towns and cities are cover cause using their EDGE connectivity is like being in the stone age.
Went to bed last night, woke up no 3g on my Samsung Galxy S i9000. Couldn't make calls either, seems thats sorted now.
This a network problemo? Harf Harf