Well putting Amithlon asside and moving to uae. The latest evisio to the jit engine in Winuae makes it almost as fast as amithlon and being a full emu its probably the better choice anyway.
In regards to Warp3D, it to could damage the ppc market with a 68k Warp3d driver. After all id imagine it simplier to make since the Warp3d driver would only need to wrap to DirectX from within uae. making all dx supported 3d cards work