Quick look down the list of features:
Supported:
Collision-Detection
In-built animation system
LOD culling (2 types)
OpenGL renderer (of course...)
Pixel shaders
Vertex shaders
Programmable render pipeline (I assume you mean GLSL)
Partially Supported:
Java 3D Scenegraph (debatable I guess)
Pluggable OpenGL bindings (framework is there, lwjgl is de facto with jogl on the way)
TBA:
Portal culling (we have user implemented stuff in the works, official to come soon.)
Real-time shadows
Self-shadowing shadow-volumes
Not Supported:
DirectX renderer
Hope that helps. There are other features to speak of... for example, imposters... all of which can be easily seen on our site: http://www.jmonkeyengine.com/index.php?option=com_content&task=view&id=40&Itemid=64 (Which would have been a good place to look for that feature list..... too obvious though?

hehe...)