So, I purchased a new MacBook Pro yesterday, being a huge upgrade from my 2008 BlackBook. I purchased the 2.3GHz i5 13in model. I used the Migration Assistant to transfer over my account, and I continued on with my usual web browsing. I decided to purchase a Mac Dev account today, after hearing about the great stability of Lion. I downloaded the 10.7 .dmg file from the Mac App Store, and partitioned my HDD properly, so I wouldn't lose any of my freshly transfered data. As soon as I opened the Lion Install file, I was greeted with this warm message: At this point, I assumed that my install file was corrupt, considering I was running the latest hardware, so that couldn't have been the issue. I downloaded a new 10.7 file, this time using other means of acquiring it, and I went through the same process of partitioning my drive, and trying to install the Lion .dmg. After all this hassle I was greeting with this SAME message: By now, I was getting extremely annoyed. I tried to find a reason for my problems online to no avail, so I did the only thing logical; I reinstalled Snow Leopard to a clean state. While I was installing Snow Leopard, I downloaded this same .dmg file from another location onto my old 2008 BlackBook. I wanted to transfer the file onto the new machine without any possible factors having a negative impact on my installation. I finished downloading the file roughly 10 minutes after my fresh installation of Snow Leopard was complete. Then I connected both machines via the FireWire 400-800 cable that I had used yesterday for migration. I powered off my 2008 BlackBook, and rebooted it, holding the "T" key, to prompt it to go into a FireWire transfer mode. Sure enough, my BlackBook's harddrive popped up on my new MacBook Pro's desktop. I transfered over the .dmg file, partitioned my harddrive correctly, and tried to install.... And what do you know, I received the same annoying error message. This is on a brand new MacBook Pro, the LATEST HARDWARE! I once again wondered if the .dmg file was corrupt. I rebooted my 2008 BlackBook, to try and run the .dmg on it... It worked perfectly. For whatever reason, Apple's brand new developer preview for Mac OS X Lion does not work on Apple's brand new MacBook Pros. What gives, Apple??