Managers don't care about a 100% secure device, they want an iPhone.
This is true.
We haven't had a really good corporate espionage case lately, but the next one is likely to involve an iPhone
The smartphone is basically the platform of the future and right now, the mobile OS war is settling down. It's a game of musical chairs and the music is about to stop. By the time BB10 comes out, the market could have left them completely behind. That's why I think they have a chance to sort of RIMify Android devices. You don't need to get people to abandon their platform, you just need a line of devices to stick out among the countless Android devices.
I don't think the mobile OS war is ready to settle down. For one thing, PC is still the office tool of the present, and MS has the inside track to really, truly integrate mobile devices with existing corporate networks. When someone has a mobile OS that natively plays friendly with the total package the way BB does with email and calendars, they will most likely win.
So far, BB has created (still) the best secure mobile communications device available, apple has shown us what a user-friendly and highly appealing UI can do, and Android has offered a truly flexible, powerful, but unfocused and somewhat inefficient option.
As it sits now, the insane number (and generally low quality) of applications needed to make a smartphone useful (beyond phone/email/camera + usable web browser) suggest to me that the industry is in its infancy.
I can't see this being close to settled until MS brings Win8 to the table, and we see what it can really do. In the meantime, everyone, including RIM still has the opportunity to create the best OS. In a year or two, that opportunity may be gone, but right now it is there.