This first version covers rigid body dynamics, including rigid constraints and rag dolls. It is released with source code under the MIT license, to allow fellow developers to reuse and extend its functionality. Future versions may cover other features like Novodex fluids, hardware acceleration and features from Meqon, depending on your feedback.

To participate in the beta testing, please send an email to claforte@feelingsoftware.com
This work is sponsored by Ageia, the owner of the famous PhysX, Novodex and Meqon physics technologies.

The current version of Nima already supports the following major features:

Rigid bodies containing one or more convex mesh shapes or physics shapes, i.e. capsules, boxes and spheres.
Convex shapes can be added or removed interactively, and they can be positioned and oriented interactively using the regular Maya manipulators.
Physics shapes such as capsules have a special manipulator to position the end-points, adjust the radius, etc.
Rigid constraints can be created to link rigid bodies together. Almost all features of the Novodex D6 joint (NxD6Joint) are exposed through this interface (e.g. breakable force and torque, local position/orientation, etc.), with the notable exception of motors.
Almost every parameter of rigid bodies and can be keyframed and manipulated interactively, including in interactive playback mode. Shapes can be sculpted and the corresponding convex mesh will be automatically updated.
Forces exercised by fields are partially supported.
Ragdolls can automatically be created from skinned characters. (Note: due to an outstanding parentConstraint bug, the resulting skinned character may not display properly.)

Screenshot in use:

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