For the millionth time:

   If you are not paying for it, you're not the customer;
   you're the product being sold. [1]

This is the inevitable end game of developing for a platform where the majority of users refuse to pay for applications. Also, note from the dude's blog that he offers an ad free version; for the price of $4.16 people refuse to be ad free. The install numbers are instructive: 740k vs 1046. I'll let you guess which is which =P

[1] http://www.metafilter.com/95152/Userdriven-discontent#325604...