Meeting rooms by nature are designed for collaboration and idea sharing - which means that sharing the display between presenters is important. To switch a screen between two or more sources typically requires the expense of AV switchers and in some cases customer programming by an integrator to control the signal. These costs can run as high as $10,000 for a basic system.
By contrast, a wireless system with four buttons and a receiver will cost under $2000
With Apple TV, Chromecast, and even some wireless devices being built in to projectors, many entrepreneurs, small business owners, and IT managers are not aware of the risk of exposing confidential or sensitive information to anyone who shouldn't have it.
The InstaShare uses 128-bit WAP end to end encryption to ensure that the presentation cannot be viewed by anyone who isn't supposed to see it.
For IT security, unknown third party apps are a significant risk to notebooks from snooping apps, malware, and other software techniques used to breach security. Poorly designed apps can be cloned and turned in to malicious software that can enable the theft of data.