Austin based Mother Tucker, LLC today announces Speed PRO 3.0, an update to its GPS-based speedometer app for iPhones. Speed PRO is a GPS-based speedometer that gives users a digital view of their current speed, average speed, top speed, distance traveled, elapsed time and altitude and allows them to save their routes. Speed PRO allows users to share speedometer and map images with friends as well as customize the appearance of its interface. Version 3.0 adds a themes option.

Instagram will already be pulling potential stores and restaurants that match your GPS location for checking in, and they’ll have been uploading the photo itself (though not sharing it) since you selected a filter. This cuts down, or even eliminates, all possible lag time on the next few screens that the user visits. Just because you need a few moments to think of a funny caption doesn’t mean that your cell phone can’t tackle a few other jobs while it waits.

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UK based Lock Stock Games today introduces Speedway Racers, the company's new arcade racer, for iPhone, iPod touch and iPad devices. The game is a revival of the old school racing games inspired by game titles such as Daytona USA and Ridge Racer. Choose your car then speed, power slide, battle and crash your way to first place. Perfect the flawless power slide to get the best times and get the edge on your opponents in this adrenaline fueled arcade racer.