Q: What is SkrewCommon ?

R: It's a package used and needed by Ringtones, vWallpaper and iToday. You have to install it before installing any other package mentionned before.
Its not a software so you don't see icon on springoard!

Q: I have a problem and need to uninstall it.

R: 2 solutions:
- Use installer, uninstall it and reboot.
- If, for any reason, you can't use installer:
* Connect with ssh on your iphone with root account and use:
cd /usr/local/bin
./ringtoneshook -uninstall
and reboot