Initially I heard rumours about the Developer give away device. Then at the Event the following slide was displayed showing the specs:
 

Picture Courtesy of Marko Saukko

Now here are more that have surfaced by Ken Harris (Thanks):

• CPU : 1.2 Ghz dual core A9 chip
  S5PV310 Revision: EVT1 (from dmesg)
  armc210bbb (marking on chip)
• RAM : 1GB
  Samsung K3PE7E700B-XXC1 2x 4Gb LP DDR2 DRAM (1GB)
  Memory: 256MB 256MB 128MB 128MB 256MB = 1024MB total (from dmesg)
• The CPU and memory are bonded together in one package.
• Flash: 16GB
  Samsung KMVYL000LM-B503
• Graphics is Mali-400 MP
• LCD dimensions: 720x1280 pixels (58x103 millimeters)
• Melfas touch screen controller
• WiFi / Bluetooth : BCM4330 , 802.11a/b/g/n MAC/Baseband/Radio with
  Integrated Bluetooth 4.0+HS & FM Transceiver
• GPS : SiRFstarIV GTD4T-9600B
• NFC : NXP-44501 (no antenna)
• HSPA+ : Intel XMM 6260
• Si470x FM Radio Receiver
• Audio: Yamaha (C1-YMU823 aka MC1N2)
• KR3DH accelerometer
• AK8975 : 3-axis Electronic Compass
• L3G4200D low-power three-axis angular rate sensor
• Camera chip : mbg043
• Maxim MAX8997 power management
• Silkscreen on board says, "SLP_U1HD" and the hostname is "U1HD"
• bootloader is u-boot , /bin/fw_printenv shows bootloader environment

 
Here are some System Board Pics courtesy of Marcin Juszkiewicz:

 
Source Tizen ML and Marcin Juszkiewicz