Does anyone see anything specific that Dropbox can't do that Google can? That grant looks really broad to me, just ... friendlier.
Dropbox: "You give us the permissions we need to do those things solely to provide the Services."
I'm not sure there's any difference in intent or clarity here. I think it's clear that Dropbox is nicer about it. And because their product is smaller in scope maybe the rights they reserve seem less scary.
But really, I think this is a giant kerfuffle over nothing (fueled in no small part by the "Dropbox is on the HN team" feeling here). These licenses look almost 100% equivalent to me.
Google can broadcast TV ads with your private photos if they want to.
But if you insist on reading the license that uncharitably, you have to accept that Dropbox too can find plenty of wiggle room to be evil. Seriously, you're granting "all needed permissions" without enumeration -- you don't find that scary? What if Dropbox decides that "providing the service" requires revenue gained from scraping credit card numbers from stored files? See? I can come up with equally silly scenarios.
>Dropbox is clear what their intent is.
It seems that you have it backwards, Dropbox is not clear in their intent and the language is vague. I'm not sure what this means:
>You give us the permissions we need to do those things solely to provide the Services.
It seems that they can pretty much do whatever they want, as "Services" doesn't preclude anything.
>This permission also extends to trusted third parties we work with to provide the Services
That sounds like third parties can do whatever they want as well.