Don't Hack My Junx. Please.

Google Earth is sweet. It's a standard piece of software using technology that, while once innovative, is becoming very standard in the uses of GIS. Maybe I have a little more experience with this than some people but its not really the software that makes Google Earth noteworthy. Sure, the program combines services into a fairly seamless and performance based output; but its the services that are the godsend. Services are hosted data gathered by content providers. They may include: aerial photography, satellite imagery, ground coverage, elevation, topology, land use, lidar, utilities, roads, boundaries, etc. Getting this data from Tele Atlas or the other publishing companies isn't cheap. That's why the original Google Earth software company, Keyhole, was a subscription based utility.

So when Google started absorbing that cost (obviously supplementing themselves in some other way) it was a great leap towards bringing GIS to the everyman. So when I read the first part of this article about Gaia, an effort to reverse engineer Google Earth to make open development efforts, I was skeptical. Its not really cool to sponge off Google's subscriptions to services just because you want to. They're providing free access to pay-content with a decent application. Reading further down the paragraph, that's what Google told these developers:

they do not own the data, and neither does Google. It is licensed to Google on the restriction that it is not to be accessed or used outside Google's client software.

Yep, that's pretty much the situation. If you guys are interested in 3D GIS you can work on lots of different projects, you just have to get your own content. Check out ArcGIS Explorer from ESRI. Its like Google Earth but you add your own services, or ones that you have legal access to. That's the kind of program you should be interested in releasing to the public; not one with someone else's services hard coded in. ESRI even provides some free services (mostly from Tele Atlas) to get you started.

• Open source Google Earth clone canceled - Download Squad