Birthdays that were already in your Contacts prior to PR1.2 won't be added to the Calendar. If you edit the birthday field for a contact it will add them. Unfortunately if you have synchronised with Facebook then the Contacts app won't let you edit birthdays.
http://harmattan-bugs.nokia.com/show_bug.cgi?id=158

Yeah the sound is there when:+a buzz
-swipe away a notification on the lock screen
-open up the quick access menu(swype slightly upwards)
-close an app
-long press on any of the three main screens
-if you close more apps at once the sound is play in quick succession at times

I find this really annoying.

The difference should be visible on the launcher rather clearly. (tested it myself)

Yes, black, from finland.
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Here's what I noticed

-Swipe animations of lock screen is smoother, although scrolling has a few moments where the FPS is dropped and swiping between homescreens now seems a bit jerky at times
-If you click on the notification bar it will now make a clicking sound and buzz
-Opening up Phone and going to the call log now organises calls differently(possibly). If I remember right they were organised by day, but are now by week, although correct me if I'm wrong here.
-When opening the clock the alarms list now appears via an animation, before that it just appeared and I don't remember again(yes I have cheese for a brain), but the clock now also displays the day(both name and number)
-If you go to Settings-Applications then instead of a menu entry you get a button for Manage Applications
-Removed the duplicate wallpaper from the wallpaper gallery(there was a default wallpaper which appeared twice(Blue Lights)
-The Video app now says there are no videos instead of showing a greyish gradient
-I don't know whether this is PR1.2 or not, but if you got FF installed you can select it as your default browser in the settings.
-When you open the language selector for Swype when you want to type something, it will now only list languages that you selected instead of showing everything
-Alarm clock turn off/snooze buttons are now bigger, more apart and uglier :P

Here are some important ones from the bug tracker (I'm not going to list previously mentioned improvements)

-Custom ringtones won't go away in mass storage mode (bug 707)
-Closing on splash screen stops app from opening (bug 638)
-Camera button to add image to messages (bug 595)
-Browser can now download all MIME types (bug 558)
-Automatically get notified if there are updates for apps (bug 514)
-You can remove credit card info from the Store (bug 513)
-The FB Like button is fixed (bug 480)
-Call logs now always list international phone numbers, even if you didn't save the phone number with it's country code. (bug 478)
-You can now search for nicknames in Contacts (bug 290)
-Swiping has changed (bug 224)

Here's the complete list : http://harmattan-bugs.nokia.com/bugl...product=Device

Can anyone confirm a 93+% ram usage after updating with no apps running except resource monitor?

i have. But then it miraculously improved

Bug 123? The most annoying thing in the world.

Browser can now remember passwords.
Settings, Applications, Web.

New Contacts options: "Prefer avatars from" & Prefer nickname.
Settings, Contacts.

Twitter notifications, toggle Messages, Mentions & replies, From people you follow OR From anyone.
Settings, Notifications, Notifications, Twitter notifications.

Always happened even before, normal for a Linux OS, happens across platforms.

Excellent idea for a thread afaq, thanks.

So the PR1.2 came. Most of all I appreciate the DLNA server function. It's f*cking awesome \o/ Folders are very well made too.

Gotta test video calls tomorrow. It seems they aren't that expensive in my network.

^Eh video calls? I thought it wasn't there?
Waiting on peregrine or another 3rd party aren't we?

Didn't the notification before the upgrade say that PR1.2 introduces 3G video calls? It did I think. 4am here at the moment. Kinda awkward moment to call somebody up just to try the feature.

Edit: Btw, now applications can be closed in a more delicate manner: just a light swipe from above. Nice.