I've had multiple math professors tell me to study as much math as I can while I'm young, because once you're over 30 it's a lot harder to learn math. I'm in my 20's so I'm not sure if this is true.
It also seems to me that the math you would learn in an O'Reilly book isn't in depth enough to contribute to research.
The Blackberry does have some advantages over other consumer smart phones. RIM's built a lot of infrastructure for dealing with corporate clients and security. It's probably going to be a long time before the president of the United States switches from a Blackberry.
Some people may interpret your words in any way that can start a conflict, but I agree with what I think you intended to say. Of course there are plenty of women capable of handling mathematical and technical discussions, but even so, in a romantic relationship people relate to each other at an emotional level.