For those of you like, me, who really do not like iOS7 at all, and want to rollback, I can only add a description of why you can't downgrade any longer. Could you have? Yes, on Thursday or Friday, however Apple removed their "signature" on the iOS6.1.3 files late Friday night or early Saturday morning which prevented you, or rather blocked you, from legitimately downgrading.
If you had downloaded your SHSH-blob file (a secure signature file created between your device and Apple for your software version), you could still legitimately downgrade. If in fact, if you had all of your blobs for previous versions, you could go up and down all you want. That is however, only if you knew that these existed before you upgraded, and made a copy of it. Otherwise, you have to validsate online against Apple's server to "check" for a legitimate signature for th version you are trying to load... which in the case of the iPad2, 3 and 4, is now only iOS7. Sad...
In my case, I had successfully rolled my iPhone4 back, but it was late and it took me a few hours to learn how to do it, so I put off doing the iPad2 until the morning... my mistake there, and found that the signature was gone and I couldn't downgrade my iPad2.... and I didn't know about the blobs, yet...
Is there any way back? Well, legitimately not unless we can coerse Apple into opening the signature for iOS6.1.3 again. Personally part of what like about my Apple products are that they are legitimate, secured and locked against things like viruses, hackers, and etc... and 'cracking' isn;t really what I want to do to my once-beautiful iPad.
Here's hoping that either someone in Apple with a heart, that remembers Steve Job's words all those years ago, about "...giving users options" and the focus on the user-experience (remember the MAC-OS/Internet Explorer announcement... or the Conference where he took on a complainer who challenged him), and which has always been the Apple-mantle; will step back and be human, perhaps a bit understanding and caring, and unlock and allow the iOS6.1.3 signature for those of us who really REALLY do not like iOS7, despite the efforts of those who do like it to try and force us to accept it, because as the users who are loyal and LOVE our Apple products it's simply the right thing to do. Right?
It's either that, or give us a glimmer of hope, accept the mistake, and add some of the features from iOS "classic" for us in iOS7.1?
<Edited By Host>