Spoilers:

Check out this communally gathered data: https://docs.google.com/spreadsheet/ccc?key=0Ajc_VqH8uv38dFd...

Apparently, all of the big red letters at the end of the trails spell out "APRIL FOOLS". The smaller red letters and numbers spell "MMC-900913", which is a reference to last year's 8-bit map.

In this video, you can see MMC-900913 printed on the a controller chip at 29s. http://www.youtube.com/watch?v=rznYifPHxDg&feature=youtu...

This might be a stupid question, but I don't see how to view or edit any marked end points on the map you linked to.

I followed a trail starting at a skull in Amsterdam, and ended up at a red revolver.

Edit: Coordinates of revolver: -5.06,-64.36

Go to the coordinates in the eye sockets, and it takes you to another landmark with coordinates.

Didn't seem to work for me.

The coordinates that are indicated in the landmarks are a bit hard to read sometimes, and you have to piece them together. The skull in New York is pointing to: (-15.36, 15.90). After searching for that location, zoom in on the green arrow, and you should see a piece of ham that is pointing to: (-21.53, 46.05)

The coordinates at the sword that comes next are also ambiguous. You have to infer that the 9 in the handle is indicating that the first number is 9.81.

Oh, I see - thank you!

I think 37.89,-61.96 is actually next, although it does take you to your location after that. The trick is to see the comma after the nine, indicating to enter the numbers in the other order.

The easy zooming and panning makes this a better graphing experience than any other calculator/software I have used so far. True, you don't have the capabilities of Mathematica available, but it seems to work great for graphing a single variable function.

This is something i don't understand why other mathematical tools do so badly. Have you tried navigating the graph in a matlab plot? You have to select one tool for zoom in and another tool for zoom out and then click the graph to get a huge zoom-step that isn't even centered around where you clicked. Then another tool for moving to the correct position and another to see the values. SERIOUSLY?!!?!!!! This is a super expensive tool designed for plotting and comparing graphs and the diagram-control stinks so bad. Implementing this feature properly is one day of work. Synchronizing dimensions of axis between different diagrams is also something very important that matlab has huge difficulties with. Mathematica isn't much better in this regard even though they at least plot with anti aliasing T_T.

Related is also navigation in maps-software. Not many programs do this right even though it's so simple.

Grapher does this quite well. It comes with Mac OS X and plots various things, 2D and 3D: http://www.google.com/search?q=grapher+mac&hl=en&tbm...

It also formats the equations nicely and lets you copy them as PDF. Makes a decent formula editor for Pages (with simple formulas).

Yeah, I was on the 5th floor. I had a good view actually, but it was a little bit hard to hear, especially at the beginning while everyone was still moving around, trying to find a place to stand.

I was surprised by how much he seemed to know about research happening here at UW.

I ended up leaving shortly after he started the Q&A. The crowd was too fanboyish for me to handle.

I am a UW student who went to this talk. It was an interesting event. I think Gates' response to the student who asked how to be rich was the most memorable part for me.

At the department website it says the talk will be archived, but the link doesn't seem to be active:

http://www.cs.washington.edu/events/billg_oct27_2011/