RIM also revealed that BlackBerry 7 will provide means for users to keep personal and corporate content separate on the device thanks to the integration of BlackBery Balance. This means users can check their personal email, access Twitter and Facebook, play games, interact with multimedia and install other non-corporate apps "while satisfying the very real need for corporate data to be highly secure and manageable."
I'm sorry, but if your employer is paying for the phone, you have no cause check personal email, or access Twitter or Facebook from your phone and expect any kind of privacy (if you want privacy, don't use your employers hardware/internet connection). And playing games, even if you're in marketing, you don't need to play solitaire for business purposes.
Clearly Blackberry is trying to cater to the average smartphone user, and by that, I mean Joe Sixpack and Susie Homemaker, who vastly outnumber the corporate users these days. At the same time, RIM is trying not to abandon their coprorate users, but Joe and Susie have no need for document editing and Exchange synchronization, encryption, VPN, etc...
Blackberry is trying to do too much with one phone. If they could afford it, they need to branch their business, create a BlackBerry Home unit that makes fun phones, and a BlackBerry business unit that creates capable work phones. It would be like Dell. You can buy a fancy XPS system, a Laptop that lets you replace the case for different styles, a boring business-class line, maybe a high-powered workstation. Point is, there's no one-phone-fits-all scenario (unless you're an Apple user). You can use a single OS, but you need to market the phones differently. Trying to sell one phone that does "everything" (but nothing exceptionally well) does not work. Apple doesn't advertise the iPhone as a business phone (they mention it can edit documents and check email, but they don't mention businesses). Continually marketing each Blackberry as a business phone that is also fun is failing. Advertise a fun phone AND a business phone, but don't make them the same phone. Change colors, cases, whatever, make them different somehow.
p.s. I didn't bring up Android because Google doesn't make the phones. It's up to Motorolla, HTC, Samsung, LG, etc... (and to some extent, the network provider) to decide what features actually get used and how to advertise them.