I recently updated to Xcode 6 and now the command I was using before doesn't work:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/iPhone\ Simulator.app/Contents/MacOS/iPhone\ Simulator -SimulateApplication /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk/Applications/MobileSafari.app/MobileSafari -u "http://google.com/"
I do a lot of front end work and responsive design and must look at the results in every browser multiple times a day. It is very painful without this command.
Also, I would like to open in IOS7 with one command and IOS8 with another.