When BlackBerry Messenger for iPhone debuted there was a waiting list to gain access. That's always a good way to mitigate against massive server loads, but not a great way to satisfy everyone who wants on now, now, now. Well, looks like the waiting list is a thing of the past, and millions of downloads later, the gates are wide open for anyone and everyone who wants in.
If you haven't tried BBM for iPhone yet, now's your chance. If you have, let me know what you think.