I upgraded from 1.1 to 1.2, exactly as i did when i went from 1.0 to 1.1.

Did a backup, updated phone, restored backup, then i restored applications.

But this time its broke, i cannot restore any applications, i cannot download any new applications.

My log file is full of apt-worker: Ignoring version from wrong domain:

If i am lucky enough to get it to list any applications to install, for example the facebook widget it just hangs on "downloading 216kb" .

I have no idea what to do to fix it.

Re flash your n900 with a global 1.2.
I have not had a single issue with 1.2.
My pr1.2 upgrade was done as a flash update via computer, (used backup program) and restored my backup and it was fine.

As above. I flashed the emmc too just for completeness and the N900 has been excellent since.

Check your repositories/application catalogues -
Pre PR1.2 the distribution section was 'fremantle' for extras etc
After PR1.2 the distribution is 'fremantle-1.2'
It might be having difficulty trying to restore apps from an old repository.
Or I might be way off the mark - either way it can't hurt to check.

not going to be able to reflash until tuesday when i am back in work as usb cable is there. here is some of the log if it helps

hildon-application-manager 2.2.52.2
apt-worker: Ignoring version from wrong domain: xserver-xomap 2:1.6.99.1-0osso20090208.104+0m5
apt-worker: /var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages
apt-worker: Ignoring version from wrong domain: xserver-xorg-core 2:1.6.99.1-0osso20090208.104+0m5
apt-worker: /var/lib/apt/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages
E: Failed to fetch http://repository.maemo.org/extras/d...le/Release.gpg Could not connect to repository.maemo.org:80 (1.0.0.0), connection timed out
E: Failed to fetch http://repository.maemo.org/extras-d...le/Release.gpg Unable to connect to repository.maemo.org http:
E: Failed to fetch https://downloads.maemo.nokia.com/fr...pps/./Packages connect() timed out!
-----
Installing foreca-weather-applet 0.9.5
apt-worker: free space (/) = 78278656
apt-worker: free space (/home/user/MyDocs/.apt-archive-cache/) = 27359051776
Failed to fetch https://downloads.maemo.nokia.com/fr...let-0.9.5.deb: connect() timed out!
required disk space: 416078
-----
Installing feedservice-plugin-ap 0.2.21
apt-worker: free space (/) = 78282752
apt-worker: free space (/home/user/MyDocs/.apt-archive-cache/) = 27359051776
Failed to fetch https://downloads.maemo.nokia.com/fr...0-1_armel.deb:
Failed to fetch https://downloads.maemo.nokia.com/fr...4.2_armel.deb:
Failed to fetch https://downloads.maemo.nokia.corequired disk space: 94974
m/fremantle/ssu/apps/./feedservice_0.3.4_armel.deb:
Failed to fetch https://downloads.maemo.nokia.com/fr....21_armel.deb: