Recently active topics in Grand Central

Does anyone know whatever happened to GrandCentral? The product sounded great and had a bright future, then Google acquired it and it's been in "reserve"-mode for the last few months with no other communication.

Is there a way to delete your whole Inbox instead of one message at a time?

I can't seem to log in to my account. Password reset does not seem to generate an email to allow me to reset the password either. HELP!? thanks.

Did Grandcentral disable the ability to create a vacation greeting? I remember that this used to be a feature, but it seems to have disappeared?

I'm on vacation right now but can't leave a "call me back when I return" greeting, which means that people keep calling over and over asking me where I am. It's so frustrating, not to be able to leave a message for everyone without erasing all my regular greetings and replacing them with a temporary one...