IBM Cloudant Data Layer Local Edition delivers the availability, elasticity, and reach required by web and mobile applications based on Apache CouchDB. Cloudant Local offers:

• Data flexibility through a JavaScript Object Notation (JSON) document store that allows users to change schemas on the fly and ingest data from many sources and in many forms.
• Powerful indexing and search to increase application flexibility.
• Read/Write scalability to support large numbers of concurrent users and locations.
• Multi-data center replication to help reduce latency and deliver business continuity.
• Enhanced support specifically to address geospatial data requirements.
• Integration with the open source Cloudant Sync package to support synchronization of mobile and remote devices for always on access
• Utilities and dashboard to simplify management tasks

Find out more here.