Just wanted to point out that if you flash your Iomega PX6 or PX4 with the latest firmware, 3.1.14.995, it will actually enable you to do Mac OS X (Lion / 10.7) Time Machine backups and restores again… I discovered it by accident as somehow Iomega did not list it in the release note and they did not update the KB article which explains that it doesn’t work. Anyway, it works again… Simple download and upgrade of your PX6/PX4 firmware will do the trick, at least it did for me.