[martianmarv]

The "data.zip" goes in the root of the iGo8 folder.

Another thing that may help people with TTS. Once you select the voice that you want, go into the "voice" folder where your content is and move the voice files that are not being used to a different place like storage card or something like that. It seems that when iGo8 loads up, it loads all the voice files even though they are not being used. I tried this and have not lost TTS for over a week. I also noticed the speed of the app dramatically is improved, TTS works like a charm, and I don't get system or GPS lags anymore. I put all the "voice" files back in the "voice" folder to try it out and TTS stopped working when I rebooted the iGo8 app. maybe my phone is doing weird stuff ( i drop my phone a lot and have zapped it a couple times with an ESD gun on accident ).

Anyways, i hope this may help.