If you're referring to GPLJonas' comment as containing "perfect grammar, good use of white, buzz words and directness" then I'll take that as a compliment! Everything but the first three and last paragraphs were copied from my blog post! (http://blog.fosketts.net/2012/01/03/microsoft-adds-data-deduplication-ntfs-windows-8/)
FWIW, I'm not a Microsoft shill or astroturfer. I'm a blogger who happened to write about MS' dedupe yesterday and it got quoted here. I only noticed this thread thanks to all the Slashdotters coming over to have a read. Hi!
Indeed, I'd love to see Linux implement deduplication similar to Microsoft's new NTFS tech. But of course, it's a major development effort and LOTS of patents are involved.
If you teach your children to like computers and to know how to gamble then they'll always be interested in something and won't come to no real harm.