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Please change the title of your posting to FAKE

It only shows a cydia icon, currently NO JB for iOS 7 is available
 
Video of Jailbroken iPhone 4 iOS 7

If it is a fake, try to put 5 icons in the bottom or do the same on your phone, what the guy do.
Have look for this one ... fake icon as well ?
http://www.youtube.com/watch?v=Vg8nCZcAJ9M

What you are looking at is ragebreak, which is a raw JB for the iphone 4 only using opensn0w.
It uses the limera1n bootrom exploit.

It is a DIY JB. Cydia is not fully functional neither is mobilesubstrate, Saurik extensively commented on it on reddit.
http://www.reddit.com/r/jailbreak/comments/1qb309/ryan_petrich_ill_leave_this_here/cdesa4t?context=3

In the video you can see the mobilesubstrate version 0.9.4001 which is the most recent from the evasi0n 6.x JB

So yes it is a failbreak and not what you want.
 
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