Apple may be sending Mac Pros to certain retail stores that will serve as a Lion distribution caching centers letting customers purchase Lion and quickly download the OS to their device over the local Wi-Fi network.
Furthermore we've heard rumblings that some stores will be receiving maxed out Mac Pro towers to be used as Lion distribution caching centers (speculation here). Some believe that these stations would allow customers to purchase Lion (3.5GB) from the Mac App store and download it directly from the store server in minutes rather than hours it takes over a normal broadband connection.
Apple has already confirmed that customers without broadband can bring their Macs into the store to download Lion. If true, this caching center will make the process a whole lot easier.
Which is why apple should have sold both the disc version and app store version of the OS.
I know they are trying to be innovative, but the technology and user base that exists now isn't efficient enough for it. I guess it's a start, but i'm predicting there may be a big backlash when the OS is released.
servers will be down, customers will be pissed, lines at the apple store with people holding their 27" imacs, mac pros, etc.