iH8Sn0w has released iFaith 1.1, an update to his tool that dumps the SHSH Blobs of your current firmware, even if Apple is no longer signing that version.
---------------------------- iFaith v1.1 Release Notes: ---------------------------- * Code improvement. * iFaith now SHA1's the SHSH blob. * Now alerts user when iFaith was unable to hook iTunes instead of crashing. * Minor Bug fixes with device/iOS detection. ---------------------------- * Mac version is going to proceed into development shortly (so don't bother asking about it). ---------------------------- Now available at: http://ih8sn0w.com ----------------------------
You can find instructions on how to use iFaith here.