There are skin shaders available with similar features as ezskin: You load your poser materials as normal. The plugin makes a simple conversion (diffuse, specular, bump and transparency maps). Then you apply the shader in the plugin with "import all materials for this figure/while retaining texture maps) and you will have your skin with the SSS and other settings. So pretty much what EZSkin does.

Some shaders cannot be translated since there is no equivalend function available or where the implementation does not require it or needs a complete different approach (like glass and water). There are plenty of materials in the LiveDB database which can replace those shaders.