Select face/edge/vertex by index. Dumps some info to the console. Useful to find problems with other addons giving index of problematic face/edge/vertex.
Works with Blender 2.62 (non-BMesh) and 2.63rc1 (BMesh) now. However, in 2.63 it is about 10-20 times slower, because accessing the UV-Mapping is much slower. Will look into this later.
Since code has been improved you should also update if you are only using Blender 2.62.
Because I had the need here I present to you my newest Blender Addon:
Copy Vertex Order By UVs