I used to do the same thing but I noticed that once I installed gridlock, springtomize stopped saving my layout. Not sure if the conflict ever got worked out. But I definitely experienced that issue.
Edit: Has anyone else run into this problem?
To you, and the OP, going via SSH/iFile/iFunBox/whatever to /var/mobile/Library/SpringBoard.
What are the timestamps of IconState.plist and IconSupport*.plist?
I've had so much problems with layouts not working that I'm scared to even jailbreak on iOS 6 whenever that happens, because for the life of it I can't seem to retain layouts.
Using Springtomize + GridLock + EnhancedFolders I screwed it.
Using Springtomize alone I screwed it as well, but the weird part is that, after I installed IconSupport (no Gridlock or anything) I was able to save my iPhone from the respring loop of death and now Springtomize works fine (to remove the page limit, since I have so much apps).
The thing is I no longer have the IconSupport.plist because right now I'm not using apps that take advantage of that Library (Gridlock, FolderEnhancer) but I know that my IconState.plist was changed by Springtomize (or iOS itself, but via the removal of page limit) and now it lists the 20 or so pages I have.
So what I'm trying to say is, probably in oder to save the layout all one need is:
1. Backup IconState.plist.
2. Restore iTunes to say, iOS 6 (let's pretend we're in October).
3. Jailbreak.
4. Install Cydia.
5. Install Springtomize, remove page limit (in my case, or also Gridlock and others)
6. Restore from backup.
It should work now, says the internet. But I think I'd have to copy back IconState.plist prior to (6) anyway.
And in case I'm just tripping here, what I'm really really trying to say is, to check IconState.plist each time you change a layout (move an app's position either by itself or to a folder, rename a folder, etc) and it SHOULD have a timestamp of "now", so that my theory stating "IconState.plist is the only thing you need to backup regardless of whether you have Springtomize, FolderEnhacer, Gridlock, etc" would hold true.
But now that I think of it, since GridLock uses positioning, probably IconSupport.plist is required as well before (6) to retain "odd" (that is, non Apple) position of apps.
As a matter of fact Springtomize's backup is nothing more than saving that plist right? But I've have it failed on me on iOS 5.x when "restoring" from that backup. Also I've failed when restoring iConState.plist manually.
The weird part is where does it fail when restoring it.
A vanilla IconState.plist will only contain like 9 pages and that's it.
The jailbroken one will contain all pages and weird stuff like more apps inside a folder and the like.
And anyway, iTunes is supposed to save that layout plist via a backup (also should work with iCloud backup).
So OP, if you have that try restoring from a backup, unless you'd lose a lot or simply have a really old backup.
Sorry if the prior paragraphs sounded like a bad acid trip mixture of things. Take what you can out of it
