The recent iOS updates have mostly been welcome improvements for iPhone 4 and 3GS users, but it's been a decidedly different story for folks sticking to their venerable iPhone 3G. Not only have they been left out of some of the fun, but they were dealt a serious performance hit with iOS 4.0 that was only somewhat corrected by IOS 4.1. Could iOS 4.2 finally bring things back up to speed? According to the folks at TiPb, it just might -- they've now tested the iOS 4.2 gold master on an iPhone 3G and fou