My iGO link: h**p://www.htcmania.com/showthread.php?t=411397
For voice problem, in my iGO i select TTS voice and in Android Settings -> Voice input output (or something like this) --> pick option "Always use mi configuration" (or something similar)
The problem with Navigation could be that you start it before the SD Card is mounted? If i start iGO before it, it says something like that files foi iGO \content are not in SD Card; if i wat for the PAD to be completely started and all SD Cards mounted, there is no any problem.
I just installed it and now my igo no longer stutters!!!!!!
Thanks a mil.