The only way to get Lion right now is from the Mac Dev Program. It is a beta OS. It runs beta versions of Xcode. Apps built with beta versions of Xcode (4.1) will fail to validate when you try and submit them to the App Store. If you try and install Xcode 3.x or Xcode 4.0.x, Installer.app will fail and complain about the OS being unsupported.
Just get a secondhand mini somewhere. They're cheap — much more so than your time.
You can trick it into installing by changing SystemVersion.plist but it's a dirty hack. Xcode did seem to launch fine though afterwards (I only used it to activate Developer mode on my iPad)
The only way to get Lion right now is from the Mac Dev Program. It is a beta OS. It runs beta versions of Xcode. Apps built with beta versions of Xcode (4.1) will fail to validate when you try and submit them to the App Store. If you try and install Xcode 3.x or Xcode 4.0.x, Installer.app will fail and complain about the OS being unsupported.
Just get a secondhand mini somewhere. They're cheap — much more so than your time.