I know Maarc has been making some steady progress on his client based on the Ogre engine. It sounds to be making some great pogress, mayb he could post a few screen shots.
I have also been revamping the mul C++ library for the mul files, based on leassons learned from WorldForge.
An initial set is up at http://www.sf.net/procects/swords in the cvs, module valley.
It should enable you, in pure C++ (no libraries), access the mul files, and get the image data, attibutes, etc (and edit them) for your code, without a lot of inside information needed on the formats. As always it is a work in progress, both in breadth as well as maturity.
I have also started getting the the library integrated with a rendering engine, irrlicht. Hopefully I will have the next generation WF rendering done in that (so windows users can freely modify the source, no more QT), and perhaps toy with evolving it into a client.
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