I'll jump on August 12th although it might possibly be earlier than that.

I foresee a big jump in HW sales next week upon the release of MP8 in Japan and possibly for Mario Strikers in US.

August 19th

Edit: It will take the Wii another 3 weeks to get to the current amount of 360s sold and then the next week it will undo all 360 sales from the coming 4 weeks. 

But yeah count me in for the 19th August!

I'm going to go with August 26, but barely.

And the Sept. 2 week will solidify the lead (MP3 release is in that week).

12th to 19th august and after that it will be close run because Halo but I bet Wii will hold the position to never look back

It's good to be back from holiday

I take august 19 ^^

i'll take august 19th, just because with the wii mainly being limited by shipments i doubt they can have the stock to surpass it any earlier.

August 26th

August 26

Hardware boost in Japan for Mario Party 8, no hardware boost in the US for Mario Strikers.

After the Japan numbers today.  The Wii will only be about 600k behind.  So since its gaining at a rate of 200k a week, I'll say it'll be 3 weeks.

Which means August 12th.