I just got myself one of the Navgo units from Deal Xtreme. I've been mucking around with the MioMap link that was put up in the cheap GPS thread and I've come across some other TTS voices which are for MioMap.

The MioMap recongises these voices in the menu however when I try and go and use these voices in a flyover mode (at slow speed) it stays quiet. It works for Samatha but her voice is a bit grating so I was thinking about playing around with some other (english??) voices.

I'm suprised how well the software and hardware work, also thanks to people who recommended it.