"Starting salaries for an entry-level software developer (with a bachelor's in CS) are roughly double the starting salaries for non-programmer entry-level positions that require a bachelor's degree--and employers don't like that."
That's also true, but it's also interesting to consider from the perspective of a talented student considering CS. If he believes everything he reads, (a) he'll start with a decent salary but probably hit a glass ceiling relatively quickly (a much lower ceiling than, say, a doctor or management consultant or trader), (b) his skill set is in constant danger of becoming outdated due to the unusually high pace of skill turnover, at which point he'll be replaced by an H-1B holder or new CS grad, (c) he'll be expected to move to Silicon Valley (or NYC, apparently) where the cost of living will negate his higher salary. If any of these things actually come to pass, the relatively high starting salary he made the first few years out of school won't be much consolation.
I think the problem employers see is not that software dev salaries are rising, just that they are high compared to other job descriptions, and have been for years. Starting salaries for an entry-level software developer (with a bachelor's in CS) are roughly double the starting salaries for non-programmer entry-level positions that require a bachelor's degree--and employers don't like that.