[fooqux]

It's not their fault that Google's permission system isn't fine-grained enough. Besides that, what trade secrets are you going to glean from a contact list or calendar entries? I doubt even your meeting agendas are going to contain much info.

[gcb0]

good for you that you have nothing to hide in your calendar and contact list.

[fooqux]

Then don't use the "advanced features" where your data is sent to a server? Or don't use the product at all until they open the source? I don't understand what your point is. This isn't being forced on you.