For many developers, releasing their games on mobile is the best outlet for them, and Google Play has announced they'll be changing the way the five-star rating system works during August.
Google Play will now make reviews of more recent versions of a game carry more weight on the overall score. So if your game did poorly on the beginning but improved over time, the reviews from your old versions won't bog down your overall rating. Many developers tend to delete and republish their product for this very reason, so Google taking this step forward will be huge for some.
Additionally, they'll be providing app developers with pre-written responses to reviews. They can choose from a list or just forgo it and write their own.
Google's entire blog post can be seen here.