Intially in 1998-2002 I used to use different Internet Browsers; and used to write code looking through different browser; for NetScape one block, in another block for IE... like that
Now since 2005; hardy 10 times I used other than IE; my only favourite one is IE.
About the next coming version http://blogs.msdn.com/ie/archive/2007/12/05/internet-explorer-8.aspx
Internet Explorer 8 Blog: http://blogs.msdn.com/ie/
Channel 9 IE8 Video: http://channel9.msdn.com/
Thanks to Microsoft; great news for the developer, those who like to play with new technologies... Microsoft Pre-release Software Visual Studio Code Name "Orcas" can be downloaded till 13 March, 2008