IPSW Downloader now has a new name , OpenIPSW . This comes from the open source nature of the ipsw downloading application .The windows version of IPSW Downloader can be used to download all .ipsw firmware files required to build custom jailbroken files using jailbreak tools like Snowbreeze , PwnageTool .
OpenIPSW now comes with missing features from its first beta release . It will now show all available iOS along with the availability of its jailbreak/unlock status . It will also show if the jailbreak can provide tethered or un-tethered jailbreak to your device [very handy].
OpenIPSW will automatically update its status when connected to the internet , which will give the current information of available ipsw files. You can download OpenIPSW from the developer’s website here .