Use Updated TinyUmbrella to Svae SHSH Blobs on iOS 4.3.4
Apple recently released iOS 4.3.4 for all iDevices to fix security holes concerning JailbreakMe by Comex. TinyUmbrella 5 is released for iOS 5 Beta 3, however, developers of TinyUmbrella has updated TinyUmbrella to support iOS 4.3.4 so that now you can save SHSH blobs on iOS 4.3.4.
You can download TinyUmbrella from below links:
Download TinyUmbrella for Mac
Download TinyUmbrella for Windows