Despite Apple's claim that Mac OS X 10.7 Lion can only be installed as an update from Snow Leopard, you can certainly install Lion on a clean hard drive. Once you download the Lion installation file through the App Store, you can create a boot disc on either a DVD or a USB drive.
Here are a few screen shots of the process.
Every January since the second coming of Jobs, Steve has been sending out his messages via a keynote to once again solidify Apple's commanding lead in the computer/personal electronics industry. This year is no exception. Perhaps it is even more exciting than ever with the anticipated arrival of a brand spanking new Tablet.
Among our Mac-geek-circle, we refer to Steve's keynote as Apple's State of the Union. And as of right now, the field of reality distortion is in full force at one special place in southern California. I'm heading there virtually to see what magic Steve has this year besides the iPad. :)