<canvas .../> is an HTML element that first popped up in Safari, where it helped Apple create Dashboard.
It is being standardized by What-WG
and added into Mozilla 1.5. I guess that Konqueror may be able to get support easily from Safari, it is on the list at least.
I've thought a number of times that this is all irrelevant for the next 5 years at least. Currently there is no
<canvas .../> in IE, and I can't see Microsoft adding one into IE7, so we'd need to wait for IE8, or for IE to fall to less than 10% market-share. Even at the current 1% a month we've got another 5/6 years to go and I'm sure IE7 will slow down the decline.
<canvas .../> is neat I didn't plan on adding it into my list of things to investigate, until now.
I stumbled across the magic incantation:
369303C2-D7AC-11D0-89D5-00A0C90833E6 which happens to be the GUID for DirectAnimation. DirectAnimation is part of ActiveX, but so is XML.HTTP which is the foundation of Ajax in I.E.
<canvas .../> element with an
I have no idea if it is possible, but it sounds like it could be very interesting if it works.
Update: Emil A Eklund has implemented the Canvas Tag for IE using VML