Mozilla Guy On XAML vs XUL

Hello,

Gervase Markham (a Mozilla employee) writes in the blog story titled 
"XAML and XUL":

  I just attended sequential talks on XAML (from Rob Relyea of 
Microsoft) and XUL (from Ben Goodger, Firefox Lead Developer) at the 
XTech conference. One could argue about whether and how these 
technologies are in competition, but what struck me most were the 
differences in focus, approach and design philosophy, which I would 
summarise as exclusivity vs. inclusivity.

Portability. The motivation behind XAML seems to be to make it easy to 
write Windows applications, or web applications in IE. The motivation 
behind XUL was to provide a first class UI on every platform without 
having to do the work multiple times - i.e. "we want to be inclusive; 
let's work out how we can do that".

Localisation. The XUL system is designed to be very easy to localise, 
and Ben made a point of mentioning it. Firefox 1.0 is available in 40 
languages, localised entirely by volunteers. No mention was made of 
localisation in the XAML presentation.

Licensing. The XAML presenter dodged the question of whether Free 
software implementations of XAML are possible. The reference XUL 
implementation is available to all under a Free licence, the standard 
(as far as it's documented) is open, and the authors neither hold nor 
would enforce patents on it.

Of course, having only heard 45 minutes on XAML, I could be mistaken in 
some of my understanding. Alternative views or corrections welcome.

   Source: http://weblogs.mozillazine.org/gerv/archives/008211.html

  Any comments? Any thoughts?

- Gerald


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