Anyway, I am sure there is a good work related reason .. just give me a few minutes. But I thought now that I have been tinkering with it I would say how that it is a great program .. except if you want to get up close and personal in PNG.
Example:

Here is where I used to live in Sydney - right in the middle of the image from an altitude of about 350m.
Lovely spot, near the water close to the centre of the city, with lots of pubs and a massive tollway out the back (see that big square roof on the left, that is where you cough up your $4 something). Anyway notice the resolution. You can see cars parked and a bus clearly visable at the right of the image. That is good resolution.

Now here is where I used to live in London from the same height of 350m. Not as nice a spot in this case, sandwiched as it was between the A4 motorway and the District Line (oncoming tube can be seen in bottom left). But again pretty good resolution, not quite as clear but not bad.

And here we have where I live in PNG from the same height again. I think if you squint you can see something. Perhaps it is blurred on purpose. Sensitive military area or something - Igam barracks is nearby afterall.