One contact strategy to find them all?

Just happened upon Everyme on venturebeat.  The concept seems fairly solid - basically populating *all* the information that they can find about everyone I know in one place.  Which seems kinda scary, but then again, it is already out there, and at least this way I can keep an eye on it (Mind you, this also means that they can keep an eye on it :-)  )
Anyhow, I signed up - will check it out if/when it goes live...