The MonoTouch support for Xcode4's new integrated Interface Builder is coming soon, however a lot of people seem confused as to what they can do in the mean time. Thankfully there is a trivial solution for people who wish to install Xcode4 and still have a working Interface Builder integraion.
- 1. Install Xcode4 to /Developer
- 2. Install Xcode3 to /Xcode3
- 3. Find any .xib on your HDD in Finder and Right Click->Get Info it.
- 4. In the "Open With" section, change the drop down to "Interface Builder" and click "Change All..."
- 5. Profit