The TF300T has the same two options, MTP and PTP. Both are pretty much MTP modes. Boo. :P
Cheers for the screenshot. I'm at work now, on the Mac and going to see if I have access to install this stuff to let me use the TF300T here... and the answer is no. Damnit. I doubt the IT dude here would install this for me since it is not "work related." :P See, this is why I / we need Mass Storage. People who own their own Macs, it's no problem, but still Mass Storage Devices never have this issue or need to install extra stuff.