If you're not aware IE 8 Beta 1 has been released for download at the Microsoft site (http://www.microsoft.com/windows/products/winfamily/ie/ie8/default.mspx). I highly recommend any UI or Application developer to download this browser and test it. I will explain why this will be crucial for you to do.
If you are NOT aware the IE team made the decision after receiving feedback from the community that IE needs to be standards compliant. Guess what... they finally listened! IE 8 Beta 1 passes the Acid2 test for CSS compliance. You can check yours here (http://www.webstandards.org/files/acid2/test.html).
What is important to know is that the new IE engine is VERY different from IE7 and prior releases. They have created an IE7 emulation mode in IE8 similar to FireFox's IE emulation mode, the difference here is that IE8's engine is the default. The problem many of us will face is that all of those CSS hacks or "shortcuts" we all take will stand out in IE8. It no longer tolerates certain things and you will pay dearly. I also noticed that on some of my ASPX sites some of our 3rd Party Controls from Infragistics did not render properly and even through JavaScript errors. So I recommend you check all of your active projects and current projects to make sure they still work under IE8 as this is the future web browser and since it is standards compliant it will be pushed hard.
So for the good news: IE8 has a bunch of improvements over the previous browsers. The first the JavaScript Error window is new and better where you get a full list of all of the errors and you can FINALLY copy and paste from it! If anyone had the IE Developer Toolbar you can uninstall it as IE8 does not support it... the reason you ask? It is now built-in to IE8 and appears on the toolbar. It also features some new tools to help with CSS and HTML problems on the page. There are lots of other changes you can check out. The one I like the best is that IE8 now grays out parts of the URL so that only the Top Level Domain name is in black. Of course when you roll-over it all goes to black. This is helpful when visiting websites and checking to make sure they do not actually reside in Russia before entering your financial institution's username and password.
Either way it looks to be a promising browser release that will really compliment the other software releases this year. Microsoft as a whole really seems to be changing the way they do business and listening to what their customers need. This is a change for the better and will help to keep them competitive. Now lets just see if they load the Server 2008 Kernel into Vista!