More discussion of a possible software fix. Various descriptions but basically all the same ideas:

Every antenna is affected when exposed to various influences such as being touched. The chip/firmware responsible for managing the antenna should monitor the dB drop. The proper response to the dB drop would be to increase the signal strength. . . . → Read More: More possibilities and/or hope of a software fix.

Apple press conference scheduled for 10am Pacific time tomorrow. I think it is very clear that there is a drop in reception when you touch the iPhone in a certain way. This can be stopped by adding a case, holding it differently or duct tape. This obviously is not up to Apple’s normal engineering . . . → Read More: Apple Press Conference about the iPhone 4