Several years ago, Blackberry was the only way to get reasonably secure email on remote devices. Lots of companies standardised on that, and have kept going because it's the easy option and it still works.

It's been possible to get mail/calendar/etc on other devices for a while (and even for devices owned by your employees rather than purchase by you). But if your directors are all using Blackberries then it can be hard to justify the migration cost, especially for small/medium companies or places that are particularly conservative.

But when it looks like Blackberry might not be around for much longer, all that changes. Articles like this are the sign of (another) tipping point for RIM.

[ I'm a sysadmin at a small Blackberry-only company. Two managers sent me this article today and asked what we were doing ]