Forget about Adult content and even facial recognition on Google Glass. Google won't allow it.
Google Glass is the most unreleased controversial gadget ever. Mainstream adoption is highly questionable because of privacy and general usability. It is though inspiring lots of applications that we only knew from Sci-Fi movies. We already covered a story that an adult app maker plans apps for Google Glass. Another application that made headlines is the idea of implementing facial recognition in Google Glass. This would make you see people like Arnold Schwarzenegger in Terminator right away.
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The problem with these exciting Google Glass apps is that Google is not allowing them. In the Google Glass developer policies the company explicitly says that facial and voice recognition is not allowed on Google Glass. Also not allowed are sexually explicit material.
These policies are of course not preventing such apps to be developed. Google Glass is already hacked and we look at a similar parallel app world like on the iPhone. This issue could break Google Glass in the future. Governments might take action and prevent the use of the product in public places.