The number I think is important is not how many CS grads there are (no one on my team has a CS major) or how many software developers there are, it's how many people are interested in and capable of this job. I don't know what the "true" ratio is but I'm sure it is more than 16% of women which is where ardit anchored it.

It often comes back to this "pipeline" problem, but we need to think of our companies as being part of the pipeline. I don't have a CS degree -- I came out of college with a BA -- but I landed a firmware programming job, 2 jobs and 7 years later I am experience and "senior". If you're willing to train smart people, you can sideline the pipeline issue.