I thought I'd share how I created the USB key using a Mac. Perhaps it will help others. I borrowed parts from the site: http://www.ubuntu.com/download/help/...ick-on-mac-osx

1. Download the iso.

2. Open Terminal

3. Convert the iso to dmg (I don't know if this is actually necessary ...)
Code:
hdiutil convert -format UDRW -o ~/path/to/kali.img ~/path/to/kali.iso
. I suspect that this isn't necessary but this is how they did it on the Ubuntu site.

4. Plug in USB key

5. In terminal type
Code:
df
and note the location of the usb key. It will probably be something like
Code:
/dev/disk1s1
or
Code:
/dev/disk2s1
. You can also use
Code:
diskutil list
to get the same info.

In my case the USB was found at
Code:
/dev/disk1s1
.

What you need going in following steps is the portion /dev/diskN where N is the disk number you found before. In my case it was
Code:
/dev/disk1
. I'll use this going forward.

6. Now unmount the USB key using either Disk Utilities or from the Terminal
Code:
diskutil unmountDisk /dev/disk1
7. In the terminal type
Code:
sudo dd if=kali.dmg of=/dev/rdisk1 bs=512k
.... Supposedly using /dev/rdiskN is faster.

You will get a Finder message that it can't mount the drive. This is likely because OSX can't read ext3/4.

8. Unmount the USB key
Code:
diskutil eject /dev/disk1
where N is your USB

9. Reboot and press "Alt/Option" key to select kali.