1. High accordance with original C++ version.

2. Versions with or without operator overloading. Supports all Delphi versions.

3. More demos and some enhancements compared to C++ version.

Visit C++ project: http://code.google.com/p/box2d/

Newly finished library for Delphi. The GMP wrapper: http://code.google.com/p/gmp-wrapper-for-delphi/