Greplin does sounds interesting. I actually applied with essentially the same idea - cloud data indexing and search. Check it out and let me know if you want a beta invite:
www.nutmegsearch.com
Daniel Gross, if you are out there - let's talk.
www.nutmegsearch.com
Daniel Gross, if you are out there - let's talk.
I started creating Nutmeg Search just so that I could find my own stuff, but the idea seemed useful so I'm trying to make it available to the world.