http://3dpaintbrush.geometricglobal.com/ has a small image and some data - "the first email-enabled visualization and communication tool that dramatically eases sharing of product design information."
later edit: it is the same text from http://edrawings.geometricglobal.com/ 
Error; #<NoMethodError; undefined method `classify_point' for #<Sketchup;;Face;>>
SU5/Win
Later Edit: my bad, didn't read the complete tutorial where it said that it is not SU5 compatible 
I use RDE/Bridge combo with ALT+F1 to send what I wrote in RDE to SU.
it seems that my hosting has some problems 
Al: can you put the link to that forum post ?
try Flash Earth for an easy compare between GoogleMaps, Microsoft Virtual Earth, Yahoo Maps, Ask.com maps, Open Layers and NASA
the chat is a nice touch. try it up and works with video/audio with multiple users.
Al: how about developing an open specification that any render can use ?
a set of data that can be attached to attributes and a render can read and process
post this in Ruby Console
Sketchup.active_model.active_view.camera.aspect_ratio = 0.0
here are some
I use mostly Win Logo key combinations and HoeKey/WinKey program to build my own combos (Win+S - Start SketchUp)
does the trick ALT+Space(gives the system menu), M(ove) then left/right on keyboard and moving the mouse works ? (try it first on a normal window, e.g. Explorer)
if not reset the preferences as explained here
hmm, I think it is enough (see this post)
these kind of situations are very hard to debug
lot of problems with these firewalls ... I had the same problem inside SketchUp but I was able to debug it and saw who was the culprit 
did he tried to run the dialog outside SketchUp to see if it works ?
wow Whaat, how long it took to write 62954821 lines of code ? 
you should add some error checking when you getElementById, maybe the DOM didnt finished rendering the HTML code when you are running the JS code. best way is to have a function that does getElementById and error check and then returns the object back if it is valid.
also ask the user to open the HTML in IE and see if it gives the same error (maybe a better line address as it is not in the shell anymore)
1) Does the MAC version of SU also use the Internet Explorer Shell?
as Gaieus said on Mac there is Safari shell
2) What if you don't have Internet Explorer installed on your machine?
a form of IE is inside every Windows, mshtml.dll, that is used by other components and IE as well.
3) Is it possible that the javascript inside a Web Dialog can be blocked by a security feature of Windows Vista or Internet Explorer?
usually the javascript is allowed on files on the computer but can be disabled via registry
also check for antivirus/firewalls that can disable/change scripting
because WebDialogs are not using the default browser installed on the user machine, but instead a Internet Explorer shell (the same that you see when viewing .chm files for example) on Windows version.
there is no option to use other browser engine for displaying WebDialogs.
btw, why do you need another one ?
sometimes (have a Powerbook G4), but this is what I used in my TimeTrack plugin and it worked for Mac users.
how about using Sketchup.find_support_file "Plugins" and then File.join(Plugins_dir, filename) ?
great work Whaat !