Just as expected, Google has taken the wraps off the latest iteration of Android at Google I/O. So far all we have with regard to the name is the placeholder "Android M." Will that be Marshmallow? Marzipan? M&M? Magneto? We don't know, but we do know what sort of features it will bring. There are six tentpoles in Android M.

• App permissions - you know what this is about. Apps will now ask for important permissions when they run instead of getting everything approved at installation. You can also go into the settings and modify the allowed permissions.
• Chrome custom tabs - Apps will be able to add custom Chrome tabs that run on top of the app. This gives you easy access to Chrome autofill, sign-ins, and more. This is not only for M, but some version of it is supported in Chrome dev right now.
• New intents - Apps on Android M will be able to verify link intents with the platform so you don't have to go through the app picker. It should be much faster.
• Android Pay - This is another feature that isn't explicitly for Android M—it works on 4.4 and higher. However, it will have a few extra features on M, including fingerprints. Speaking of...
• Fingerprint readers - We knew this was coming too, but Android M will have full support for fingerprint reader hardware. No word on nexus hardware that will support it.
• Low-power/doze - This was rumored too, but we've heard this song and dance before. Lower power usage, you say? Google seems serious this time. Apparently apps on M will be able to ratchet down background activity when they haven't been active for a while, but still wake up for important events (like alarms). Android M will offer up to twice the standby battery life. There's also USB type-c support for both charging and acting as a charger for other devices. Neat.

Google also said there are a lot of little things in M that will improve the experience. For example, word selection will be better with word chunking. The sharing menu has direct access to your contacts too. Oh, and the volume controls are a little more powerful when compared to Lollipop.

As with Android L, there's going to be a developer preview. We'll have all the details on that soon. Watch for the image downloads to go live soon.