Will Instagram add video and voice calling to their platform?  TechCrunch reader Ishan Agarwal recently spent some time digging through Instagram’s code and found references to several unreleased features for audio and video calling. The files can be found inside Instagram’s APK (Android Application Package) but this doesn’t necessarily mean the features will be released — they could be just remnants of features which were abandoned at some point. This could make Snapchat and Instagram almost identical with the main differentiator at this point being video calls. For more on the recent Instagram development, check out the entire article!