Android M: Google's own I/O schedule confirmed that we'll be seeing a new version of Android at the keynote. After giving Android a huge visual overhaul with Lollipop, we expect the next iteration to focus on refining Material Design further, squashing bugs, and improving performance. More powerful voice controls are likely on the agenda, and knowing Google, the company will probably also boast about longer-than-ever battery life. If the company follows last year's pattern, we'll have to wait a few months before finding out what the "M" stands for. But on the plus side, it's likely you'll be able to install a preview build of Android for Nexus 6 very soon after the keynote wraps.

More privacy controls: Earlier this month, Bloomberg reported that Google is planning to give Android users greater control over apps and exactly what data they're able to access (location, contacts, photos, et cetera). Android already presents a list of requested permissions whenever you download an app from Google Play, but this approach will reportedly be adjusted to let users "pick and choose what an app can access."

Fingerprints: Last week, BuzzFeed reported that Android M will introduce full-fledged support for fingerprint authentication, letting users log into apps like Gmail and Google Drive with the press of a thumb. The Galaxy S6 proved that fingerprint scanners on Android phones don't have to suck, and soon they'll be even better. Expect Google to embrace this and move closer to offering its own take on Apple's Touch ID; obviously manufacturers will need to include the hardware on their phones and tablets, but the deep-level support will make that decision far easier.