Google published an update for its Gmail app that enables the automatic display of images in emails. Some do get annoyed by the fact that they have to wait for images to download and while for others it is a means to save money because image downloads can indeed take its toll on data plans. The latter group need not worry because even if Google made the auto-download of images a default, they also added a switch in the settings to turn it off.
Go into the settings by tapping the three vertical dots at the top right corner of the app. Then tap your email address and scroll down to the bottom of the screen and tap Images. You'll see two options there: Always show and Ask before showing.
The update also includes some other nice features like the ability to set a vacation responder right on your device. In case you're wondering what that is, it's the equivalent of the Out Of Office. Check out the log below for additional features: