Is this news? Android users aren't worthless, but they are indeed worth less. On some apps I've heard of disparities as high as 15X - the value of an Android user being 1/15th that of an iOS user. On my own apps it's gone as high as 9X.
That said, as long as you understand the economics of each platform and ensure that your advertising expenditures and any incremental user costs are in line with the disparity, you should be fine. In my experience, the best strategy is to spend any advertising budget on iOS installs, and let word of mouth/viral features get free installs on Android.
That would be an interesting experiment. There are many more variables involved though (for example, where your prices are in comparison to your competitors). My guess, strictly off the top of my head, is that it would work - at least until customers see lower prices when visiting from their desktop and get upset.
A better solution may be to mark everything up across the board - say 10% - and then offer Android users a 10% discount, while offering no discount to iOS users who are unlikely to be as price sensitive as Android users.
That said, as long as you understand the economics of each platform and ensure that your advertising expenditures and any incremental user costs are in line with the disparity, you should be fine. In my experience, the best strategy is to spend any advertising budget on iOS installs, and let word of mouth/viral features get free installs on Android.