What Microsoft is announcing today is only a small portion of what they have planned in the future - they have big plans and we're out there aggressively collecting the imagery.

We bring the imagery from our vehicles back in-house and then we review it for spatial accuracy, for clarity and to make sure that we've captured everything within a collection zone.

Our automation tools will be utilized, so if we're doing mapping, for example, it will create precise maps of the roadways -- if we're doing asset management, where trying to find road signs in imagery, we have software to do that ? if we're utilizing imagery to find 3D models, we have patented tools that can do that with imagery.

What Microsoft liked about us was that we'd done a lot of image collection. They also liked the precision of our system ? we can make very precise maps and image location from that ? we also have a very long list of patents that we've acquired over the years that deal with efficient processing of that imagery and turning it into meaningful content.

We've been doing mapping with sophisticated vehicles for a number of years ? we have vehicles with high-resolution digital cameras on board, and we drive roadways and collect imagery.

Unearned revenue is really important because it gives visibility into future revenue. In our view, concerns about it have created the weakness in Microsoft's stock for the past couple of years,