We've got a new add-on for you: CloudBird, an awesome hosted RavenDB service. CloudBird is currently available in the EU and will give low latency for apps hosted in AppHarbor's EU- region. The CloudBird guys have assured us that support for additional regions is on the way.
Once you provision CloudBird, you can use the
RavenDB connectionstring from your app. Check out the full docs for all the details.
If you've been waiting for a low-latency RavenDB service for your EU-based AppHarbor app, then CloudBird is the add-on for you.