Not a perfect replacement for a stand-alone camera key, but it could help with the occasional selfie
Motorola has updated several of its apps in the Play Store this week, and the latest to grab a new version number is the Motorola Camera app. The changelog is nice and simple — you can now take pictures on your Motorola phone by hitting the volume key on your phone or attached headset. This is a feature that other phones have had for a good long while, and it isn't a perfect stand-in for a dedicated camera button, but it can't hurt to have another way to snap a picture for the times that call for it.
As always, there are some "bug fixes" included in the latest update as well. The Motorola Camera app is compatible with Moto's latest lineup of phones, including the Moto X, Moto G and Droids on Verizon. You can snag the latest version of the app from the Play Store link above.