The new Play Store is certainly snazzy, but a lot of the functionality of the older site has been missing ever since it got a fresh coat of digital paint. One of the most bemoaned omissions was contextual keyboard shortcuts, especially handy for touch typists whose fingers never leave the keys. (ThinkPad users, I'm looking at you.) Good news, everyone: as of late yesterday, they're back.
On any single app listing, press the left or right arrow keys to navigate between the posted screenshots.