Hi Andrew,

Apologies for the lack of details - this is just our landing page and of course will be built out further.

In answer to your questions: yep, it supports Thunderbird. Yep, it supports CardDAV. In terms of syncing with your Google Contacts, I'm not 100% sure what you mean but you can import all of your Google Contacts and keep them synced up through Columns (if that's not what you meant please let me know!)

Hope that helps and thank you for your time.