I'm wondering if this ever happened in a console war. The Wii has been stuck at the same 44.3% for about 2 months. The Ps3 was rising at a point, beating 360, then it stuck at the 21.3% for about like 2 weeks. Has this ever happened in a console war? (answer the question people.)

idk exactly about marketshare but before, the wii was hold steady while the PS3 was just gaining the marketshare the 360 was losing

An interesting find indeed that I have not even noticed, lol.

They're not "canceling each other out" -- they're selling at the rate of their market share percentage.  For example, the Wii is selling about 44% of the next gen consoles every week and the PS3 is selling about 21%.  As you get more marketshare, you must sell more units just to maintain those numbers.

These numbers aren't exact -- last week, for example, the Wii sold about 49% of the total market share, the PS3 sold about 28%, and the 360 sold about 23%.

This doesn't mean, of course, that the Wii will approach 49% total market share or the PS3 will approach 28% total market share any time soon.  If you look at the raw numbers, which are necessary to see how many units behind having "X" market share each console is, you'd notice that they have to sell more than you'd expect. For example, the market is currently about 50 million consoles, but for Nintendo to gain less than 6 percent of market share, the Wii will need to outsell the PS3 and 360 combined by almost 6 million units.  That would require *huge* sales, and, more importantly, huge shipments.

Likewise, for the PS3 to reach 25% it needs to sell millions more than the Xbox 360.  And that's compounded if the Wii sells well. 

wii has gone up .5% since Jan 1st

also, if they both stay the same then all 3 are staying the same

but what is actually happening is wii is going up, it just takes time to move even .5% when you are close to 50%...as supply opens up in april and beyond, they will accelerate toward the 50% that they should hit in October

Thanks to the erratic nature of when Wii shipments arrive, coupled with semi-erratic 360 shipments, the sales percentage rates per week have actually been all over the place, but ultimately average out rather close to the current market share. To wit:

Which levies out to 48.46% Wii, 29.84% PS3, and 21.69% 360, when dealing with the actual hardware sales for the year compared to one another.

As you can see, the year-long market share is shifting, but it's shifting from the 360 to favor the PS3 faster than it's shifting from the 360 to favor the Wii. The ultimate side-effect of this is that the Wii appears to be keeping a consistent market share while the PS3 appears to slowly be gaining market share, which is true in the larger picture. In the year-over-year picture, the Wii is still gaining market share, and the PS3 is gaining market share a bit faster than it. Whether or not this will hold up after the end of the fiscal year is doubtful, however. As the week-over-week percentages show, it can fluctuate madly.

At the current rate of sales with all consoles, By gens end it will read.

Wii
360
PS3.