First post in this thread... but I also agree that Omega might have had a defective unit. If I'm not completelly mistaken the Bluetooth/GPS/WiFi antennas are connected to the main baord with a connector, and if that was loose then this kind of behavior could be easily explained.

Just to bring one real life example: 15 years ago my first cell phone (Mobira 5000, practially same as Nokia 2110...) had terrible reception. I opened it up and found that the antenna didn't have a connection to the main board. I soldered there a piece of copper strip to make contact between the main board and antenna base, and suddenly my phone jumped from 0-1 bars to all 5 bars. All was good until the phone developed another issue and I had to send it for repair. Before sending it in I removed my own mod, since it was still under warranty. After the phone came back I had to open it to see if they fixed the antenna connection issue... and there was a new connector soldered to the main board! Apparently that proofs that the phone had a manufacturing defect when it was first shipped to customer.

Finally I got an excuse to join into this useless discussion... However, I have found all my 770, N800 and N810 devices enjoyable for the use they have been designed. GPS reception has been good enough to be useful for all my navigation needs. Even during my trip to Europe about a week ago I fired it up in the airplane to see where we were... It did took a good 5 minutes to get a fix but considering the airplane conditions that is quite good performance? No?