As you probably saw this early morning i posted some first links regarding the N9 (here, here and here), and Engadget was up also with some great photo gallery here and here and with some live demos and initial thoughts !

The N9 UI, as you'll have learned from the product announcement, is Nokia's Harmattan skin atop MeeGo 1.2, which is built around three core home views. The central one is your app organizer / launcher, to one side of which you have a notifications and activities section -- which will be populated by phone calls, calendar alerts, and social network updates -- and to the other you get a live app switcher. That trio is navigable in a carousel fashion, meaning that you can keep cycling through all three by flicking your finger in one direction. Double-tapping the screen wakes the phone up and then you can unlock it with a swipe in any direction. Similar swipes, starting from one edge of the screen and going to the other, allow you to exit apps into the home screen. What we can say about all these aspects of the interface is that they're done exceedingly well and make the somewhat aged OMAP3630 processor look terrific. Fluid animations are evident throughout, navigation is natural, and this marks a major advance over anything else Nokia has given us on the software front in terms of touch-based UI.

Physically, the N9 feels about as good as a device built out of plastic can do. Nokia's devoutly calling it polycarbonate in order to highlight that this isn't just any old plastic, it's a high-grade variety that inspires confidence in its durability while also having the sharp looks to keep aesthetes happy as well. The whole phone is essentially built into the external shell, which does mean the battery isn't user-replaceable and there's no microSD expandability, but at least you can hot-swap the MicroSIM (yes, Micro) card without needing to reboot the handset.

The Clear Black AMOLED display is truly a sight to behold, with stunning viewing angles, a curved Gorilla Glass front, and some pretty excellent (for AMOLED) performance out in the sunlight. We compared it side by side with a Super LCD-equipped Incredible S and the N9 more than held its own. The screen is easily one of this new phone's great strengths, though we'd argue the intuitive UI, responsiveness, and eye-catching industrial design are pretty high up on that list too. All in all, we're highly impressed by what Nokia has put together here, though the N9 does beg the question as to why the company has opted against making MeeGo its long-term smartphone OS of choice. What we've seen today is a damn fine smartphone with some very neat ideas, one which certainly merits the title of being Nokia's flagship. Or it will do, when it launches later in the year.

For your information :

Nokia N9 Quick Specification
Size: 116.45 x 61.2 x 7.6-12.1 mm
Weight (with battery): 135 g
Volume: 76 cc
Internal memory: 16 GB or 64 GB
Use as USB mass memory device for storing photos, documents and more
Talk-time (maximum):
GSM 11 hours
WCDMA (3G) 7 hours
Standby time (maximum):
GSM 380 hours
WCDMA (3G) 450 hours
Video playback time (720P) 4.5 hours
Music playback time 50 hours

Display and User Interface
Screen size: 3.9″
Resolution: 16:9 FWVGA (854 x 480 pixels)
AMOLED display
16.7 million colours
Capacitive touch screen
2.5D curved glass
Anti-glare polariser
Scratch-resistant Corning® Gorilla® glass
Orientation sensor (Accelerometer)
Compass (Magnetometer)
Proximity sensor
Ambient light detector
Personalisation
Customisable wallpapers and lock screen
Customisable profiles
Ringtones: mp3, AAC, eAAC, eAAC+, WMA, AMR-NB, AMR-WB

Keys and Inputs Methods
Pure touch screen UI, all-screen front
On-screen alphanumeric keypad and keyboard
Dedicated power, camera and volume keys

Power Management
Talk-time (maximum):
GSM 11 hours
WCDMA (3G) 7 hours
Standby time (maximum):
GSM 380 hours
WCDMA (3G) 450 hours
Video playback time (720P) 4.5 hours
Music playback time 50 hours

Memory
Internal memory: 16 GB or 64 GB
RAM: 1 GB
Operating Frequency
Quad-band GSM/EDGE 850/900/1800/1900
Penta-band WCDMA 850/900/1700/1900/2100
Automatic switching between WCDMA and GSM bands
Flight mode

Data Network
GPRS/EDGE class B, multislot class 33
HSDPA cat 10 maximum speed up to 14.4 Mbit/s, HSUPA cat 6 up to 5.7 Mbit/s
WLAN IEEE802.11 a/b/g/n

Connectivity
NFC (Near Field Communication) for easy pairing and sharing
Bluetooth 2.1 +EDR (Enhanced Data Rate)
FTP (File Transfer Profile): server (v1.1)
OPP (Object Push Profile): client, server (v1.1)
HSP (Headset Profile): audio gateway (v1.2)
HFP (Hands Free Profile): audio gateway (v1.5)
A2DP (Advanced Audio Distribution Profile): audio source (v1.2)
AVRCP (Audio/Video Remote Control Profile): v1.0
High-Speed USB 2.0 with micro USB connector for transferring data and charging
3.5 mm AV connector
Capability to serve as data modem
Micro SIM card

Software
Software platform and user interface
MeeGo for Nokia N9 (MeeGo 1.2 Harmattan)
User interface simplified to three home views: events, applications and open apps
Swipe gesture instantly takes you back to the home view you started from
Multitasking and app switching through open apps view: a live snapshot of all running apps
Apps compliant with Qt 4.7
HTML5
Software updates over the internet
Personal Information Management (PIM)
Detailed contact information
Calendar
To-do list
Notes
Support for MS Outlook synchronisation of contacts, calendar and to-do with Mail for Exchange
Support for viewing documents in Word, Excel, Powerpoint, PDF and Open Document Formats
Online calendar synchronisation with CalDAV

Applications
Key applications: Facebook, Twitter, Skype, Joikuspot Wi-Fi tethering, Accuweather, AP News, Swype, Track and Protect, Galaxy on Fire 2, Real Golf, Angry Birds Magic, Mail, video player, Drive, Feeds, search, calculator, Calendar, Contacts, music player, web browser, messaging, photos, photo editor, Ovi Store, Maps
More apps available at Ovi Store
Nokia Link: PC and Mac application for easily syncing photos, music and videos