As we all know at this point, Google was originally going to include double tap to wake on the Nexus 6 just like it did on the Nexus 9. Then for whatever reason, it was disabled a few months ago. The N6 supports this feature, but it's not turned on by default. If you're willing to root the phone, you can get it back super-easily.
Android 5.0 is a big step up in security with its tweaked implementation of SELinux. Chainfire managed to get root on Lollipop shortly after it was released, of course, but the process has been a little more messy. There are also a fair number of root apps that are broken on Android 5.0. The newest build of SuperSU from Chainfire might fix many of those issues, though.
One of the new features introduced in Android Lollipop is an android.media.projection API that allows apps to capture the device's screen. Unlike KitKat 4.4, where you could achieve this through ADB and a USB cable (or on your phone directly with some root privileges), this new API works out of the box and opens the screen recording feature to non-root devices.
When we first reported on this option, only a couple of apps had made use of it.
When Android runs on a TV, it's still Android, there are just a few checks in place to make sure users aren't installing unprepared phone apps to their big screens all willy-nilly, creating the kind of awful UI experience that could make a techie cry and any one else scrunch their face in confusion. In a way, Google's only trying to protect us from ourselves. Most TV viewers will want nothing to do with such shenanigans, so only apps that have been updated and declared compatible with Android TV work with the platform out of the box.
The final round of Developer Preview images released on Friday left a number of users without root access on their devices, but a lightning fast quick-fix by Chainfire had them back in business the following day. Yesterday, he took to Google+ with a follow-up of how it works and the issues that are making it more difficult to acquire root on the latest version of Android.
Due to increasingly effective security measures and stricter enforcement of SELinux, it seems that many, or possibly all of the available methods for initializing the SuperSU daemon at startup have been rendered ineffective.
Technically the Developer Preview builds of Android L that Google issued are meant only for, well, developers. But of course a ton of regular users have downloaded them to try out Lollipop, and those users tend to be the same ones that like to use root apps. The updated Android 5.0 preview builds for the Nexus 5 and Nexus 7 2013 issued yesterday broke the existing root functions, so SuperSU developer Chainfire issued a quick fix.
The SuperSU root permissions manager is probably one of the most widely-distributed power user tools on Android at this point, though it won't be breaking the Top Ten lists in the Play Store any time soon. Developer Chainfire has issued an update to version 2.13, which includes a huge list of additional and adjusted features. As far as usability is concerned, the biggest change is probably the fact that the app is now available on the Amazon Appstore.
Verizon tends to actively discourage users from rooting and otherwise modifying their phones - that is to say, the users' phones, not Verizon's. Despite a draconian bootloader policy, the HTC One M7 (2013) has had at least some form of S-Off available since October of last year, and Justin Case's Sunshine tool has taken care of the more recent software builds. It's a little late to the party, but the official build of the Team Win Recovery Project is now available for the HTC One on Big Red.