Google Glass updated to XE12, brings a wink camera, proper Hangouts support and iOS compatibility

Glass XE12

As Glass matures, better app support and cross-platform functionality is added

Heads up for Glass Explorers, the December update — XE12 — for Google Glass is now available.

New this month is a long list of tweaks and features. You can find all the details at the source link, but we'll go over them quickly here.

iOS app — as we noted earlier, XE12 brings along better support for iOS. Expect an update in iTunes later in the week.
Google Play Music support has been enhanced, and the new Listen menu will let you browse playlists and open radio stations if your an All Access subscriber.
Screen lock — set a screen lock from the settings menu and anytime you deactivate Glass or take them off (if you've set-up on-head detection) the screen lock will activate.
Hangouts Glassware — now you can send and receive chats, photos and make video calls with any Hangouts contact.
YouTube Glassware — share your videos to YouTube, with support for private and public uploads.
Wink — Explorers with a new model Glass (purchased or swapped after October 28th) can now take pictures via blinking. This works with the display off, and seeing the privacy outrage over this feature should make for loads of fun.
New Google Search features — searching for how far you are from a place or how many calories are in a food is now supported.
Removed Signature from Messages — no longer will your SMS messages say Sent Through Glass. Email will, though.
Removal of Guest Mode — maintaining Guest Mode was too much strain on the programmers, says Google. It is no more. Google recommends using a "demo Google Account."