So here are the first pics. But i have to say this N900 is just for testing mods, because it doesn't read SIM-cards any more. So i took the place from the audio jack for the SMA connector. Should be possible to find another place, i just wanted to know if it is possible. But there is not much place left in the housing. I now have better coverage, signal strenght etc. It depends on what antenna you use. But with a SMA connector on your phone you have many options, like a car roof antenna for GPS and Wlan for better signal. I orderd one and will test it out. I work a lot, but i will try to answer all your questions and post more photos if you want.