Inbetween moving house I have also been playing with a little 12" iBook, I think I am going to buy it since I do quite fancy it.
One of my big wishes in life has been to get Sunbird Sync'd up with my iPaq as I have mentioned here a few times before. The Apple has that ability, though not natively, but by buying a 3rd party application called The Missing Sync.
After failing to find a demo version I ended up buying this tool only to find that syncing the device with a Sunbird file loaded into iCal totally nukes the iPaq, needed a hard reset.
After much digging around these files and coming up with the types of entries I have, creating matching ones in a new file in iCal I finally got a good idea of the format that iCal likes. Seems there are 2 major problems with Sunbird data:
1) Sunbird puts things on multiple lines, for some reason iCal does not like this, so I just joined the lines together so that you now have SUMMARY:An Event on one line rather than 2.
2) Monthly repeating events should really have a BYMONTHDAY=nn clause at the end of the RRULE, Sunbird does not add them.
Once I had a perl script to do the fixup and loaded it into iCal syncing worked 100% and I now have a iPaq synced up with iCal files, though cant really edit them in Mozilla :(

Here's a PHP script I use to "fix" the file. The user links to this script instead of the ics file (in this case, johnk.ics). Note that the ^M characters are control characters made by typing ctrl-v ctrl-m in vi. You may have another way of specifying those.
<?php
$file = file_get_contents('johnk.ics');
header("Content-Type: text/calendar");
$file = preg_replace('/^M\n :/s', ':', $file);
echo preg_replace('/^M/s', '', $file);
?>
Maybe this is something for you. I wrote a free SyncTool for Sunbird / Pocket PC. It's java so it works with Windows / Mac / Linux.
It's still beta but you may give it a try.
Infos:
http://www.finchsync.com/beta
Maybe you give me a hint, if you like it.
Regards
Markus
Anyone know if Sunbird can sync to .MAC
http://www.finchsync.com/beta
link is not working. Please repost with correct one.
thank you.
I have been using I cal with google calendar, ( these synch through a third party software ).
These get synched to a blackberry and an I pod ( I cal ).
Was thinking about using Sunbird now ... since my google calendar,
sometimes gives me trouble accesing it, due to google maintenance.