It seems that some of the other GCS programs out there don't work so well on small display laptops. I went ahead and made mine go as small as 800X480. At that resolution, there are so few pixels to work with
This screenshot is at the minimum 800X480 - additional "Status" tab appears at this resolution which includes all the waypoint, mode, distance, etc data
This image is closer to 1280X800. You'll see how the instruments have moved around a bit.
I can't say for sure that I'll be able to keep 100% functionality of the GCS at this tiny resolution forever... there just isn't enough room on the tabs.
v1.0.3 included this changehttp://code.google.com/p/happykillmore-gcs/downloads/list
EDIT: New addition of "Expand" button to make instruments on the left bigger.