Does del.icio.us Have A Supercalafragilisticexpialidocious Mary Poppins Competitive Barrier To Entry Advantage?

I recently posted about the "live business case in the making" surrounding del.icio.us and del.irio.us. I wasn’t aware of the following site before, but it could be useful for analyzing whether there are other investment opportunities or barrier to entry plays. If you follow the link here, you can see why I might coin it a "Supercalafragilisticexpialidocious competitive advantage" for del.icio.us.