No more than you would install 600K of Apps on your iPhone
Anyway, the point about the policies and security is a valid one.
Working within financial sector requires special settings that the general public will not need, and that is where these devices are targeted to. Our organization must employee a third party solution for the iPhone and Android devices to be compliant with all the legalities that come with allowing our employees to use a smartphone for corporate mail.
I know the Blackberry systems very well and what it has to offer, and it is light-years ahead of the iphone when it comes to security and the ability to manage and maintain the devices.
The usability and functionality of the Blackberry devices compared to the rest of the industry, well that is a different story and that is why they have fallen to where they are today.
However if you require a secure device, that makes phone calls, can read and send email and manage your calendar, there is nothing wrong with a Blackberry device. On the other hand if you want a device that can play games, has the latest apps, iphone or a droid is what you seek.