Full Specs of a 13' MPB (low-end or high-end, nobody knows)
Double Core i5 chip, 2,3 GHz
3 Mo cache
4 Go DDR3 1333 MHz
Disque dur de 320 Go 5400 rpm
Glossy 13,33" screen, 1280x800
Intel HD Graphics 3000, 384 Mo of RAM, shared with the 4 Go DDR3 Ram
HD FaceTime Camera
Superdrive 8x
Thunderbolt port compatible with high speed MiniDisplayport (MD to be plugged ont Thunderbolt)
SDXC card
Firewire 800
2 X USB 2.0
Digital audio out
Built-in ethernet
Backlit keyboard
Size (cm) 32,5x22,7x2,41 cm; 2,04 kg
Bonus : thunderbolt logo
http://www.macbidouille.com/news/2011/02/23/le-lightpeak-d-apple-s-appelle-le-thunderbolt
source :
Double Core i5 chip, 2,3 GHz
3 Mo cache
4 Go DDR3 1333 MHz
Disque dur de 320 Go 5400 rpm
Glossy 13,33" screen, 1280x800
Intel HD Graphics 3000, 384 Mo of RAM, shared with the 4 Go DDR3 Ram
HD FaceTime Camera
Superdrive 8x
Thunderbolt port compatible with high speed MiniDisplayport (MD to be plugged ont Thunderbolt)
SDXC card
Firewire 800
2 X USB 2.0
Digital audio out
Built-in ethernet
Backlit keyboard
Size (cm) 32,5x22,7x2,41 cm; 2,04 kg
Bonus : thunderbolt logo

http://www.macbidouille.com/news/2011/02/23/le-lightpeak-d-apple-s-appelle-le-thunderbolt
source :