Walter,
I noticed today that ver 6.5.9 is now the production software version for both the '700 and the '720. Version 6.5.9 does not provide usefull NMEA output on my '700. If I am to stay current on the latest software for my '700 (I've seen the peeks from the alpha version of 7.0; it really looks nice) and have my NEMA output functional, it looks like the TTL output option is the only possibility for my '700.
I've read some posts that indicate that NEMA output now works quite well on the '720.
I am very interested in the TTL option, please keep the coding for it high on your priority list, to hopefully to coordinate with the beta release of 7.0.
Thanks,
David