Mozilla Ichnaea: geo-location from cellphone towers, wifi networks, etc

The Mozilla location stuff has been around for a while now, and I've contributed a fair amount of data via their MozStumbler Android application for the past two or three months. I realize it's an experiment, but there are a few problems I see with the data collection side of the project:

• All data is uploaded anonymously, so I can't download or save the raw data I've collected. This means I can't look at it except aggregated together with other users' data and fuzzed on a map Mozilla provides, I can't play with it, I can't upload it to other similar projects, etc.

• In fact, nobody can download a dump of the data because of privacy concerns for data contributors and access point operators. At best, you can consume a derivative of the data by using the location API.

• In an attempt to protect the privacy of data contributors, Mozilla "fuzzes" acquired data before displaying it on their map. Unfortunately, they've fuzzed the data to the point that I can't tell which streets I've already been on and which I haven't. (Half of the fun of this was seeing things on streets I'd never been on before.)

It's mildly tempting to fork MozStumbler and have it also upload the data I collect to a server I control, just so I have a copy of my data. (In particular, it might be fun to throw together some code for algorithmically locating cell sites and access points, just to see how well I can make it work.)