Does this mean I can start developing for IE7 soon? [A guy can dream, can't he?]

BTW, here are some links for anybody developing for IE6 (I feel your pain, brothers and sisters):

Valid fix for PNG transparency on a single image http://www.bioneural.net/2006/08/09/valid-fix-for-png-transp...

How to apply tr border to tables in Internet Explorer 6 http://www.csarven.ca/tr-border-trick-for-ie

IE6 Peekaboo Bug http://www.positioniseverything.net/explorer/peekaboo.html

Anyone else sick of things breaking in atleast 1 browser everytime without hacks? Why can't their be a base standard

There are standards. The problem is that the minority of hits are made by software which implements those standards.

The HTML PostMessage feature feels a bit like something we used to have back in the old DEC PDP days - simple but effective in the right hands.