Thanks for the warm words.
And thank you everybody for pointing on irregularities of the 'last message received' window in the web page. Fixed now.

Since many people have pasted my post at their blogs, and some, with their own comments, I feel that I want to address some of these comments.
1. Hunters are not following this deer. Hunting season is over, and moreover this individual lives in built up areas. If a person with a gun comes to this area, you know what will happen.
2. Thor is not 'poor deer'. It is an alpha male, who probably fathered all young in the area.
3. The collar will be dropped of using remote mechanism very soon, so there is no way the 3.5 hours track segments will help hunters in the next hunting season (in the next fall).
4. Main danger for the deer in this area is road traffic. Please mention this in your blogs.

And thank you for your attention anyway.

Cool project..

I am curious. Have you considered mologogo? Seems simpler and only $10 per month for Boost services.

http://mologogo.myshopify.com/products/mod-your-phone-into-a-motion-detector

_sergei

can you please let me know which kind of software did you load on the phone to do the GPS2SMS functionality?
is this a free software? can I get a source for it?

thanks

Well, I have not. The commercial service you have indicated uses only Cell Phones, and it cannot be that flexible for, say, animals. And also you have to pay for it. Not Google philosophy!

But thanks for bringing that to my attention.

We did not have any special software on the cell phone. The deer carries a collar from a Swedish Company Televilt (www.televilt.se) which uses GPS/GSM cellphone grid to carry the SMS messages. So, the collar is not a standard cell phone. You can get such modules very cheap http://www.sparkfun.com/commerce/product_info.php?products_id=8246
and they will send the GPS signals to your GSM modem. Naturally, the SIMM card and fees are on you. But such project can use the suggested mail-2-map service.

Last weekend the spreadsheet was 'polluted' by the data from another collared deer. The problem was fixed, thanks guys for sending me a note.

I have heard that is it possible to implement state-space model on this dynamic track, and thus is is theoretically possible to display different states of the animal (e.g. encamped, travelling, running away) in different color. Has anybody done anything like that in Google-Spreadsheets?
Or Kalman filter for G-spreadsheets, anyone?

This is incredibly cool. Consider the applications for exploring the behaviors of shoppers, commuters, cyclists, runners, etc. Way cool!

Yes, that is a beauty of the method.

And since the data are attached to a dynamic Google-spreadsheet you can make analysis "on the fly". Basically, instead of looking at the individuals, you can display concept-oriented spots (e.g. places where the speed is at minimum, or where the trajectories become erratic), and thus use this knowledge for marketing, etc.