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Android data usage warning
Now that mobile broadband in the form of 3G and 4G has spread far and wide, Android device owners need to keep an eye on how fast they sip from the broadband trough. There are a few apps that can keep an eye on 3G/4G data usage, but Android can do that for you.
Under settings somewhere you should find a setting for data usage. This will track the usage on an app level so you can see what is using all your bandwidth.
That's not all, either. If you toggle the setting that alerts you when your data consumption hits a certain level, your phone will warn you. Drag the warning bar to the data usage amount for the notification. No more surprise overages from your big, bad carrier.
Inverted rendering/reverse colors
If you use your Android device at night or in adverse lighting situations, this setting will become your best friend. It reverses colors rendered on the screen, eg black to white. This makes it much easier to read the screen in the dark.
Besides the obvious, displaying black screens has an unexpected benefit. Rendering dark pages uses less power than light pages.
Personalized voice recognition
Not everyone likes to tell Android what to do by voice, but those used to dictating search queries and other input realize how good Android’s speech recognition has gotten. It’s not perfect, so there’s a way to get Android to learn what you tell it over time, and get more accurate as a result.
The personalized voice recognition is buried in the settings so it’s a little hard to find. Under the “Language and input” section you should find “voice search”. The “Personalized recognition” setting is a toggle that activates the learning process. Anything it learns about your speech input is associated with your Google account.