Google has confirmed its latest Android 4.4 KitKat update for Google Glass ahead of a 24-hour public sale later today. The update improves battery life and reliability, but temporarily disables the built-in video calling feature until it can be improved.

Researchers at the Newcastle University were given five pairs of Google Glass to test it out with people suffering from Parkinson’s disease in a medical trial so as to make their lives simpler. This will include reminders at regular intervals and some visual cues to keep the brain flowing.

Google released five simple games for Glass, the company’s buzz-worthy wearable computing device.

In a post on the Glass Developers blog, a spokesperson wrote, “We hacked together five simple games that experiment with the unique features of Glass and demonstrate some of the possibilities for gaming.”

With Tennis, Balance, Clay Shooter, Matcher, and Shape Splitter, Google is making a play for the profitable mobile game market, one that regularly outpaces both traditional gaming revenue as well as other forms of media.

Is it your wish to try out Google Glass, and have you missed every opportunity to do so thus far? Well, if so, and you are a Play Music All Access subscriber, it looks like today may be your lucky day. To celebrate the successful launch of Google Music for the new version of Glass, the team at Mountain View is sending out invites to users who have already subscribed to the monthly service on either their Android- or iOS- powered smartphones, giving them the opportunity to “sign up” to the Explorer database, which, in turn, will give them the facility to purchase their very own Google Glass unit.

If you’re a Google Glass Explorer who paid $1,500 to get your hands on the device early, then you can expect to receive an email from Google inviting you to upgrade to the latest model free of charge. The design of the new wearable remains the same, but it’s not more durable and slightly faster.