As I said in a previous post, I don't see why I need to have a GPS to get an approximation of my location. I then suggested using an open source cell list or Google API.
But cell_log is _not_ about finding _your_ location ...
It's about trying to find the location of the _bts_ and for that you need a _precise_ location for you. (or else you're just gonna get unusable garbage out ...)
cell_log would typically be used to create the database like google has to locate (using another software) you only using the bts you can see.
Cheers,
Sylvain