I would like to download XCode 4 in advance of attending WWDC 2011. I'm willing to pay the $4.99 for it, but Apple seems to be saying that I must be running OSX 10.6.7 before they will allow the download. I know that I can't use XCode 4 unless I'm running 10.6.7. Although I'm not yet ready to install 10.6.7, I'd still like to download XCode 4 now because download time is probably pretty long. Any suggestions please?