bjoern07

It's not a poor decision when you consider that we have carefully normalised the use of the modifier keys across all our tools. The most used tools determined our choices for these keys.
 
So, for example, Shift is always used to constrain (proportions or direction), Alt is always used to temporarily cancel snapping.
 
When you look at the bigger picture our decisions should make better sense.  We also make more heavy use of the modifier keys for tools like our Pen and Node tools.  As a result of this we chose to define our own key usage, mostly determined by how the left hand falls on the modifier keys on the standard Mac keyboard, and how it feels more natural to operate combinations of the keys when using the Tools.  We tried following standardized keys usage, but it only works for single keys (which is fine for apps that offer less powerful control compared to our tools) - in combination with other keys it felt cumbersome and with heavy use even uncomfortable.

This seems like a poor decision. option+drag from centre is standardized.

For those who are using non-Mac systems, this is what I get with a "normal" Mac program when I click on the title (in recent versions of MacOS):

 
From there, I can rename the document, add tags to it, move it (using "Where:"), or lock it to prevent changes.
 
 
This is what I get when I command+click on the title (and this has been around for a long time):

 
Selecting a folder from that menu navigates to that folder in the Finder.

Command Click on Title Bar to see Doc Path. Sigh. Works in just about every program known to man. How does Publisher, Photo, Designer NOT do this? Doesn't the basic Mac Dev Kit do this for you? (Just tested Photoshop CS3 with tabbed docs to make sure I wasn't dreaming. Yep. It does it.)