Apple's Lion Brings Pcs Into Tablet Era

http://finance.yahoo.com/news/Apples-Lion-Brings-PCs-Into-allthingsd-1362548204.html?x=0&.v=1

This was a great article in today's Wall Street Journal.  It talks about Apple's new operating system called the Lion.  It does away with scroll bars and the mouse and instead moves the Mac towards operating more like a smart phone or tablet.  All of your icons are displayed on your home screen instead of your documents being buried into files and menus.  The mail app has been completely revamped and now operates more along the lines of the iPad. Some of the interesting features are as follows. It does away with having to save your work and does this automatically for you.  Additionally, each auto save saves a separate version of your document allowing you to go back and forth between versions and cut and paste as needed.  Anytime you go back into a previously worked on document your cursor is right where you left off.   You can now double tap your computer screen to resize the web page you are viewing just as you can on your iPhone.
What I also found interesting is that the Lion is unavailable in stores and is being sold as a download only.  The Lion is being described as more modern than the old types of operating systems.  How long will it be till the Lion is considered old??