, titled "Project Glass: One day...," on April 4 in which a man only using his voice and other inputs does things commonly handled by smartphones, such as scheduling meetings, taking pictures, checking the weather, getting directions, and placing a video call. The difference is instead of having to hold a device in your hand, the data you need hovers in your field of view.

Adding to the hubbub, co-founder of the glasses at a San Francisco social event.

In response to the publicity, people seem to be pumped up about the prospect of AR glasses anyone can wear; Google's YouTube video already has had nearly 9 million views with most of them liking what they see.

Yet in spite of the hype and the fact that in February, the that Google was planning to release such high-tech glasses later this year, not everybody is holding their breath for an actual product like the one in the video.

According to , at least a couple of experts say the technology Google is showing off can't possibly deliver what the concept video depicted.