Some of the fellas over at BlackBerryForums.com seem to think that they're tweaking the most recent BB Connect clients for stability with the latest firmware revisions Nokia has released.
Because of the problems associated with attachments of all kinds with BB Connect there was some talk of scrapping it altogether, but apparently Nokia was not behind that idea, only some frustrated users. Mail for Exchange is being touted as a better solution, however it's not without issues of it's own.