A number of users are reporting that iPhone software/firmware 1.1.4 does indeed provide a healthy boost in cell signal strength, which was severely degraded for some users under the 1.1.3 software/firmware revision (prompting a series of boosting methods including one that involves scotch tape). This enhancement stands in addition to a series of other undocumented fixes in 1.1.4.
Some positive reports from iPhone Atlas readers:"I am getting 2-3 bars and solid edge in the Chicago Union Station north bound Tunnels. Normally would be no bars and EDGE would be sketchy. … Read more