[freakinvibe]

stk, I can't present you any studies, but what could be suggested to management is that people could use their private phone for business.

The company could pay them a fixed sum per month (e.g. 50$) which should cover for data/voice costs. Then they could use a new feature called "Blackberry Balance" that separates business and private data on your phone. So business data is encrypted and can be controlled by BES, but the private part (private e-mail, FB, Twitter, Games, other private Apps) are untouched and not controlable by BES.

Our clients mostly have Blackberries and notebooks. Notebooks are much harder to control. Although they have full disk encryption, VPN etc., the support is much more time intensive.

In the end, you probably need a Gartner study to present to your management, but it seems clear to me that Blackberries are much easier to control and support than notebooks.