I just did some math and found out that if the difficutly of GG was ever to get to 16,000 roughly it would take about 28 minutes to come back down to 1 if I am understanding that decreases in difficulty can range from +400% to -400%.
That sound right?
What adjustment limit factor did you use ?
+/- 400% is the default bitcoin values, and they resulted in large jitter that greatly displeased some miners, so I've dropped that. From the top of my head, current adjust is 176,9%, symmetrical +/-, with retargets every 16 blocks.
I put way too much time into this. But it was fun..
I have made a high res version from the icon Lolcust sent me. Using a program called perfect resize I managed to make it large enough to use in other project, without too much pixel distortion. Like this coin for example. Which is 50% size of original I made.

Theres also this version
http://imgur.com/YhR6l with a little more texture.. perhaps too much.
Btw I'll send the high res icon if anyone want it. Just PM.
Neat. You can expect 500 Geists to arrive a mite later today