And it's not like it's a huge mystery how you'd do that securely, without having to rebuild all the UIs and network interfaces and security that allow your salesdude to connect to sensitive customer data from a Starbucks and keep everyone else in the Starbucks from doing the same thing.
In fact, new toys for end users are a great way to justify the cost for the infrastructure behind them which can almost always be used for other projects that could reduce the amount of effort it takes to maintain desktops for all those users
The problem may be that, even once you get all the back-end virtualized and secured and everything, your end users are still going to be using Windows.
Is that going to be a good thing, because it reduces training and infrastructure mods? Or is it going to suck because, well, it's Windows?
You tell me. Given the choice between iPhone, Android and Windows 7 on a smartphone, which would you pick? And are you going to get the opportunity?