There is a BIG difference between that screen and the Invisible Shield. Here is just one difference taken from their own websites:
BESTSKIN: "
Q. Are the Best Skins Ever scratch proof?
A. Almost. Best Skins Ever have a forgiving, almost self-healing characteristic. They're not scratch
proof but they're a lot less prone to scratching than the screens on today's small electronics. To our knowledge there isn't a product on the market that claims to be scratch
proof"
They have NO guarantee!
INVISIBLE SHIELD: "
Q: Lifetime Warranty & 30 Day Money-Back Guarantee
A: The invisibleSHIELD is so tough, we
guarantee it for the life of your electronic gadget. Unlike other screen protectors where you must purchase many protectors over time, the invisibleSHIELD is guaranteed to last! If it ever scratches or peels off, we will replace it, for FREE, for LIFE!
On top of the Lifetime Warranty, we also offer a 30 Day Money-Back Guarantee. If you are not convinced that the invisibleSHIELD is the best protector in 30 days, simply for a full refund of the product"
Also you have to create a mixture to put on your device and shield to apply the BESTSKIN while the INVISIBLE SHIELD provides a pre-mixed solution in a spray bottle.
There really is a big difference.