I have had my Eris for a while and have had the 50% signal issue since the upgrade. But, my wife got the LG ally this past week and we have found the same issue on it. It runs 2.1 and is pretty fast, just seems to have some battery issues, which is strange since its battery is bigger than the Eris. But, to get to my point, I am wondering if 2.1 has issues with CDMA radios and some logic or math for the radio calculations. Also the Ally constantly shows radio reception from -100 to -90, with 4 bars, so something is lying since -100 should be 0 reception.