

The new iOS 4.1 beta that was just released today to developers appears to include the signal bar changes that Apple had previously described:
The new signal bars appear slightly taller than the previous ones, and presumably Apple's calculations regarding signal strength has been revised. No word on if people are having any actual signal improvements beyond the cosmetic changes.To address the issue, Apple will be issuing a software update "within a few weeks" that will adjust how signal strength bars are calculated and displayed. The change will adopt a recently recommended formula from AT&T that will more accurately display actual signal strength at any given time. The update will also increase the size of the smaller bars (1, 2, and 3) to make them easier to see.
Article Link: iOS 4.1 Beta Includes Apple's Planned Signal Bar Changes