IE7 will be pushed to users through Automatic Updates this October.
Are you ready? Asks the IE team. I think a more prudent question than ‘Is your site ready for IE7?’ would be ‘Is IE7 ready for our websites?’. Quite why Microsoft feel they can ask the world to bend over backward for it I do not know.
Once IE7 takes over your system you may well be wanting to look at some standalone versions of older IE browsers so you can test layouts in them.