You're right, I don't think that's been stated yet. The chip itself is fairly low power draw- but with those op-amps and other stuff onboard I'm guessing that stuff might be able to draw a good bit more.
The PSoC is so highly configurable internally that power consumption will totally be up to how you set up the internal clocks and analog blocks. Cypress has a great set of technical notes about all of these aspects. This TN even includes a spreadsheet to help you estimate power draw and battery life:
