openIPSW Helps Windows Users Determine Jailbreak Info
Formerly known as ipswDownloader, openIPSW helps Windows users determine their jailbreak status. It helps identify your device (you should know this!), iOS version, what jailbreak tool to use, unlock status, baseband version, and status of SHSH blobs.
Ryan mentioned to me on twitter that Mac/iOS support could be coming in the future.
Thanks @brandonlang for the heads up!