iPhone 3G motherboard missing component after the main antenna contact

Anyone knows what this component is on the iPhone 3G motherboard?

I have an iPhone 3G motherboard I bought locally for $25. It had a broken #3 connector which I fixed successfully. By comparing to a working motherboard, I noticed that it is also missing a component connecting the contact to the main antenna on the bottom speaker module. Does anyone know what it is? It looks like a resistor, fuse, or capacitor. If I know what it is, I can probably install a new one there. Picture showing where it is located on a working motherboard can be found at:

http://picasaweb.google.com/lh/photo/zVL...