I'm pretty sure harmeet is using this:
http://www.zagg.com/invisibleshield/apple-...ins-shields.php

The solution n squeegee is a must

tried before on my previous phone..as long as the solution doesn't flow into the speaker/any holes available, it should be ok.
The thing is...it's damn difficult to apply and the final output might not look as good as u see in the video.
Protection wise, undoubtedly it's really good. However, it will be difficult to glide your fingers across the screen as it feels rubbery.
After 2months of usage, orange peel and oxidation effect will start to surface and before u knew it, u would tear it away and go for other products.
Just to share my experience on Zaggs IS.
Protection: 9 /10
Aesthethic after 2months: 3/10