db4o (database for objects) is the open source object database, native to Java and .NET. Free software, available under the GPL and under a commercial license. Ideal for embedded use, e.g., in software running on mobile or medical devices, in packaged software, and for real-time systems. Key Features: - The One-Line-of-Code-Database (One line of code stores any object; Class model = object schema; Smooth production process) - Embeddable (Zero administration; Automatic schema versioning; 400 KB footprint) - Multiple platform support (Native to Java and .NET; Mobile, PCs and servers; Runs cross-platform) - Brings more OO to the database (Object-oriented replication; Native Queries; ObjectManager browser) Key Benefits: - Slashes 90% of cost to develop persistence - 10% faster to market with your application - Runs up to 44x faster than conventional systems - Deployable in large volumes without local administration - Build lean and truly object-oriented software - Build distributed, fully synchronized data architectures - Fewer errors, better refactorability and software longevity