It's bad in many cases. If you do mobile games with IAPs for instance, 20% retention during the first 7 days, with the ever rising user acquisition costs we hav

It's bad in many cases. If you do mobile games with IAPs for instance, 20% retention during the first 7 days, with the ever rising user acquisition costs we have today, pretty much means you can't be profitable unless you explode virally. And since in 99% of the cases this does not happen, this effectively means the vast majority of developers doing mobile games now will be out of business in maybe a year or two. Which is a pretty depressing thought.