I have a 3G with the Navigon app. When using TTS the voice guided directions are always choppy. Sometimes I barely a blurp before the voice cuts out. I would think this is because the 3G doesn't have the processor speed or RAM of the 3GS but I haven't heard anyone else complain of this issue. Am I the only one or are the other 3G owners out there having the same problem with TTS? Also, if this is a common issue, is it just the Navigon app or do the other TTS enabled GPS apps have the same hang up on 3G?