Well, not sure how much the OS really has to do with, IMHO, it depends on where your (3G, non-3G or fringe area) and how you use the device. The OS hasn't anything to do with those two issues.
Maybe one OS will work better for your circumstances over another, but I doubt that it is an answer for everyone.
Many times, an OS upgrade fixes one thing, such as improved battery performance, but it breaks something else. My advice has always been if your device really works the way you want it to, then don't try to fix it with an upgrade. It is easy enough to carry and plug into a charger when needed.
Last edited by Dubdub : 06-13-2009 at 08:46 PM.