Network problems...my solution!
Since I have my iPhone (2 weeks now) I am using Waze on it (actually was one of the first apps I installed). I noticed that eventhough I have all networkbars AND the iPhone says it has a 3G datanetwork, very often Waze would lose connection to the server. It would reconnect, but it happened constantly and at least every 10-15 minutes. With battery 'drainage' in mind I set my network to NO 3G and ...hocus pocus...no more network problems. Been driving for days and Waze on for hours and not ONE single time it happened. Don't know what the technical explanation is, but this seems to be the direction to look when trying to solve the network issue.
Re: Network problems...my solution!