This has been out in the wild for a while, but seeing as not everybody uses twitter, for those of you that dont know, Bluerise recently fixed loadibec for iOS 4.1
Download the current set of USB tools for openiBoot from: http://idroid.nickpack.com/openiBoot/Tools/
MD5sums:
6de8007a2115b1cd3425522089119a91 oib-tools-OSX.zip
4368a81028b316e4312bf99e82e001d4 oib-tools-linux-x86.zip
37daa16b5217cbbd6697c0e371fe138e oib-tools-linux-x86_64.zip
Until next release, OSX users will need to be running a 64-bit system and will need: http://idroid.nickpack.com/OLD/libraries/libusb-mac.gz