So, seems like the Xulrunner nightly build service Brad Lassey was talking about is working already and i tried running some simple xul apps in it - they work, just like Fennec So, we now have another development environment if someone care about it (porting Prism springs to mind, that would be sweet).

You can find the latest Xulrunner here:
ftp://ftp.mozilla.org/pub/mobile/

I tested the one in the dep directory.

Crowbar here (tested xul app):
http://simile.mit.edu/wiki/Crowbar

Feel free to post other interesting findings. Check Fennec to see how to enable extensions for the app (though i don't know how you will use them

(the svg clock xul app doesn't work, seems there's no svg show support in this Xulrunner).

One way to evaluate XULrunner as a development environment is to ask "How many people can write Javascript?"

Not to claim it as the most wonderful language in the world, but I expect a lot more people know it than the existing development languages. (Me, for instance.)

So I'm happy.

Not that many can write - too many script repo sites around. But at least the language is quite flexible. Too bad it is interpreted and has a big overhead (Xulrunner).

At least this Xulrunner is way faster than MicroB for now.

Does this mean we can try to get Sunbird running as another PIM choice?

http://www.mozilla.org/projects/calendar/sunbird/

Maybe Needs compiling though.

A couple of questions about XUL on the tablets:

Q1. Hidonized XPCOM? I guess it is XPCOM, but what I am trying to ask is if it will be possible to 'auto-hildonize' XUL apps so that the same source can be used for XUL apps running on Win/Lin/Mac/Tab?

Q2. Will a XUL runtime be shared between all XUL apps? MicroB and/or FF browser + XULRunner apps. (This seems to me to be an important issue for portable devices with a small amount of memory and one that Python and Java both fail to meet).

A more general question:

Q3. XUL has always looked really interesting but I have never got my head around it enough to decide if I want to invest time learning to use it. That, plus the vague feeling that it might only be an internal project used by Mozilla - not really a well-supported, well-documented development environment. Was I wrong about this, or is the outlook for XUL about to change?

Is Firefox 3 running on top of XULrunner? If so, we have tablet-XULrunner over in Debian too...

There are dedicated xulrunner packages in every distribution, probably in Debian too.

I did some research; yes, FF3 is running on XULrunner 1.9.

And yes, Debian has a separate package (1.9.0.1-1) for it.

I'm sad that we won't be getting any Thunderbird until they port it to XULrunner 1.9. And that doesn't look like it will happen quickly.

Anyone want to compile Shredder Alpha 2 (Thunderbird 3.0) and let us see what it looks like on the tablets?