While Della may offend the most militant feminists, I think it will probably appeal to the average woman. My wife, is very practical and doesn't particularly care about owning a laptop. She'll gladly use mine or whatever computer happens to be around. When I start talking about his and her's she has no interest. Just our's.
I think this is probably not uncommon. My wife won't care about the various specifications, CPU speed, memory, etc. The only thing she might care about is how this laptop is going to benefit her lifestyle. Looking at the Della website, they are trying to communicate exactly this. I think Dell has done a great job communicating how technical details will translate to real life benefits:
"Improve your mood by listening to music, viewing pictures or even watching a movie. Some netbooks even offer an optional DVD drive. If your netbook has an HDMI port, you can expand your screen by connecting your netbook to an external monitor or TV. Several minis have HD screens available as an upgrade!"
Dell is definitely interested in women purchasing "upgrades," but how do you convince a woman to upgrade who is already feeling guilty about spending money on herself? It was hard enough to get her to even start thinking about buying a new computer. So they are simply trying to connect real world benefits to these various technical aspects. If anything, I think Della is a tribute to the practicality(differing priorities) of women rather than an insult to their intelligence.
I'm not Dell fan-boi, but let's be honest here women tend to see the world a little differently than men and we're all better off for it. Why not just embrace the differences rather than trying to force homogeny?