One of the "paper cuts" developers have been having with developing their MonoTouch 4.0.x (and earlier) applications is that for some networking setups, the IP of the developer's workstation detected by MonoDevelop and given to the iPhone or iPad device for debugging purposes is not correct. This often happens if the WiFi is a different network than the network that the developer's machine is connected to (although there are other scenarios as well). Since it does not seem to be widely known about, allow me to point out that current versions of MonoTouch allow developers to modify the IP that the runtime should connect to for debugging via the iOS Settings app found on any iPhone or iPad (or Simulator). You can see a screenshot of this per-App Settings page in the screenshot to the left. Each of these fields are editable, allowing you to override the defaults filled-in by MonoDevelop. Read more: A Moment of Zen
QR:
QR: