I am going to update the first page with people's predictions. The Slim launches on Sept. 3rd (according to Wikipedia) in Japan, which is a Thursday. I will use the AVERAGE number between Famitsu and Media Create.
Whoever wins this contest will have my full blessings to go and buy for him/herself a brand new Lamborghini Spyder
EDIT: The contest ends on the night of Sept. 7th, whatever the latest time zone is (Hawaii?). Must specify one number, not a range of numbers.
I will start: 70 000 units.
////////////////////////////////////////////////////////////
Garamond -- 937 000 000 000
Lastgengamer -- 210 000
daveJ -- 180 000
RukiSama -- 145 732
Netyaroze -- 113 500
chapset -- 110 000
Sh1nn -- 110 000
FinalEvangelion -- 100 000
gera4390 -- 100 000
DaHuuuuuudge -- 95 000
Noobie -- 92 300
dbot -- 90 000
uso -- 88 800
tedsteriscool -- 84 536
VivaLaWiida -- 83 000
DaBuddahN -- 80 000
ps3_jrpg_gamer -- 78 000
Boutros -- 75 000
dolemit3 -- 70 000
RicHo -- 66 666
NinjaBlade360 -- 65 000
Munkeh111 -- 60 000
jonop -- 60 000
Simulacrum -- 58 997
Phrancheyez -- 57 372
ajaghvajagh -- 57 000
johnsobas -- 55 001
Username2324 -- 55 000
forest-spirit -- 55 000
dtewi -- 53 098
Squall_Leonhart -- 53 000
nen-suer -- 49 000
Wii_Master -- 49 000
Krill -- 48 000
Alterego-X -- 45 001
MANUELF -- 45 000
Onibaka -- 45 000
ameratsu -- 31 200
Acevil -- 30 000
silicon -- 15 000
LilNjGanGsta -- 24 000
patapon -- 9001
The Velour Fog -- 1 unit
//////////////////////////////////////////////////////////////
Currently playing on PS3: God of War III
Currently playing on Xbox360: Final Fantasy XIII
Currently playing on NDS: Chrono Trigger