Yesterday I got a tip from two different sources claiming that Bell Mobility will be releasing OS 4.5 for the 8830 by the end of November. I went to another one of my sources for independent confirmation and he said that it would fit with their plans. Not much else to go on but I thought it was worth mentioning since 8830 users have been left out in the cold on practically all of the official OS 4.5 carrier releases. Still there are always the beta versions.
Thanks GS and Stigmato for sending this in!