I have seen the voluminous and erudite discussions here about the licensing schema which Apple uses to generate revenue. They apparently believe that for each computer in the same household, the license should only be used for a particular computer; so if you have more than one computer you plan to use the OS on, you need more than one license. Although I can understand this, it is simply a revenue maneuver, and their right to charge however they want; however, they cannot enforce this. I will demonstrate. If I have, say OS X Snow Leopard, purchased as a single license for $29, and load it on a single computer (laptop for portability), then we are all happy and the world goes on peacefully. But (and here is the sting), if I decide that I am going to have to begin taking classes at a local college and want to take my laptop with me for note taking, etc..., then come back home, transfer via a LAN my notes, etc... to my desktop for extensive homework assignments and want to utilize the same OS, I am out of luck unless I purchase another license. Has the user changed? Has the purpose for which I am using the computer changed? I could just as easily done my homework on the same laptop, but chose to be a bit more comfortable and perhaps utilize a desktop where I have backup systems residing where I don't have such a system on my laptop. Additionally, if I could use the OS remotely on the laptop from my desktop, then I wouldn't have loaded the OS on my laptop at all. As you can see, overall, the use of both computers is part of an overall system of how I see I need to utilize the equipment for my purposes and the OS being on two different computers is not serving two different people. In terms of the argument that you should have two separate licenses because you have separate hardware, which requires two separate OS's doesn't hold water since I could, although it would be cumbersome and preposterous, take the desktop to class, plug it in, avoiding the need for the laptop at the extreme of the continuum of convenience (having a laptop) vs. cost (expense of a laptop). Again, the laptop and desktop work together as a system and not separate computing entities. Therefore, according to Apple, as soon as I use the same license on the desktop, I have committed theft since I didn't purchase another license. We know this is all expected by the family license packs available. Well, this isn't enforceable since here is what I can do to avoid the theft. 1) Install the OS on the laptop, and all applications, then make a Time Machine backup on a) external hard drive; b) secondary internal drive via replacement of the SuperDrive; or c) another partition on the same internal hard drive (probably easiest) 2) Go to school, or wherever and take the notes, surf the web, etc... 3) Get back home and do another Time Machine backup 4) Insert the OS disk and erase the volume with the OS so as to remove the OS and essentially "return the purchased license to an unused state." 5) Go to my desktop, install the OS, then, assuming I made a Time Machine backup on a transferable medium such as an external hard drive, connect the hard drive to the desktop, Time Machine the information I need, then do my work. 6) When done working on the desktop, Time Machine again to the external hard drive. 7) erase the volume with the OS and go back to the laptop for the next outing. Now, no one in their right mind would do the above; however, this is how Apple expects you to act if you want to avoid stealing their OS by putting a single license on more than one machine. Well, you do not have to ruminate for hours to determine my course of action. I simply purchase one disk, put it one both machines and move on. I have stolen nothing because I have not placed that OS on a machine intended for someone else's use; only my own.