The lead time from the manufacturer was quoted as being 30 days. They just finalized the test fixture so I hope to have the first batch by the last week of August. I'll have ~100 available for sale after supplying all the Kickstarter rewards. Since there seems to be a lot of interest I may open it up to back orders as I expect the first 100 to go fast.

Quoting Freddy:

Will the Geogram ONE have I/O to operate external devices? How many?

Also will it have a microphone input and audio output pins?

Options might be too late for this production but maybe on the next revision. I would really like these options as this device can be used for many purposes, not just tracking.

The default sketch (firmware) gives you basic control over digital pins D4 and D10 along with 4 analog input pins (3 of which can double as digital IO). Obviously, since the whole thing is open source you can hack away at the code and come up with a completely different application. This is also why I broke out the I2C pins and why I broke out the ICSP connector. Having the ICSP connector available (along with D10 if necessary) gives you access to the SPI bus. As for microphone input and audio output, the default sketch does not support them, however I did breakout the pins for Mic In and Speaker Out from the GSM module for anyone that wants to use them later on.
I know the device is being sold as a tracking device but it's really a complete development board that comes preloaded with a tracking device sketch and is capable of so much more. For instance, the sketch uses SMS messages to communicate but that's not to say someone with some more programming experience can't get it to work with GPRS and communicate over a server for real time data instead. I'm really excited to see what kinds of applications people are going to come up with. Probably why I want to have another contest to see who comes up with the coolest application...probably give away some free boards!