In NZ 111 is the number and worked fine - but then that's because the the exchange switches and dials were set up backwards to the British ones (rumoured to be by mistake!)
In our office we have six screens on most desks. Are first we thought it was a little over the top but it's hard to imagine cutting back now; you can lay out everything at once and it's just there - no switching.
The only odd thing is we need water cooling in the desks to keep the heat down, but it works nicely.
Looking at the Background, Josh wrote this to run Island.
Bonus- you can read the original matching wbighe code at http://www.josh.com/notes/island-ecn-10th-birthday/. It's written in FoxPro. Make sure you read the bit about hard drives.