Those charts actually lie... Truth is that in the US, after ten months the PS2 has sold about twice as many units as the PS3.
Considering those are the sales of each console at this particular point in time, there's no lie. This is WW.
If you want to reduce it down to US-only, then see this URL: http://vgchartz.com/hwcomps.php?con...3®2=America&cons3=PS2®3=America&align=1
The Wii is outpacing the PS2's US pace, albeit by the slimmest of margins. PS3 is far behind.
Japan's launches of the 3 systems, aligned: http://vgchartz.com/hwcomps.php?con...2=PS3®2=Japan&cons3=PS2®3=Japan&align=1
Wii is again slightly ahead of PS2's pace. PS3 is far behind.
Rest of the world launches of the 3 systems aligned: http://vgchartz.com/hwcomps.php?con...otal+Other&cons3=PS2®3=Total+Other&align=1
The Wii and PS2 lines are for all intents and purposes identical, with the Wii picking up ever so slightly at the end above the PS2 pace. PS3 is far behind.
Of course, we're talking #s that have the PS2 ramped up, supply wise, for each region. It also had no competition to deal with for its first year of availability. In about 6 months or so, we'll see what the curve looks like. At their respective points in sales on the WW chart, the PS2 had launched in all regions and had its first christmas. So even after that WW launch, the PS3 is still tracking along similar numbers.
My bet is it doesn't keep it up after another 6 months, but it does put things into perspective.
The trick is that PS2 had a Japanese-only launch and for the first few months it wasn't available in the rest of the world. Compared to Wii and X360, the PS3 is far, far behind. Even the first Xbox has sold better then the PS3 so far.
The PS3 tracks the X360's first year almost perfectly actually. What's saving them are their Japan and Europe sales in comparison to the 360. In the US, it's not close.
But again, just comparing WW to WW in the same time frame.
WW #s, Wii vs PS3 vs X360, launches aligned: http://vgchartz.com/hwcomps.php?cons1=Wii®1=All&cons2=PS3®2=All&cons3=X360®3=All&align=1
PS3 tracks 360's sales almost perfectly. Wii smacking them both down.
America's #s, Wii vs PS3 vs X360, launches aligned: http://vgchartz.com/hwcomps.php?con...®2=America&cons3=X360®3=America&align=1
PS3 tracks 360's sales almost perfectly until about week 20, at which point it plateaus. Wii is crushing them both.
Japan's #s, Wii vs PS3 vs X360, launches aligned: http://vgchartz.com/hwcomps.php?con...=PS3®2=Japan&cons3=X360®3=Japan&align=1
As expected, PS3 is killing 360 in Japan. Wii is smacking them both down.
Rest of the world's #s, Wii vs PS3 vs X360, launches aligned: http://vgchartz.com/hwcomps.php?con...tal+Other&cons3=X360®3=Total+Other&align=1
That big PS3 spike you see, and acceleration toward the 360, is the European launch. Wii is smacking them both down.
Short and skinny, PS3 is tracking 360 perfectly because of its Japan domination and Europe/rest of the world acceleration in sales. We'll see how things track in another 6 months or so, but this is how things stand right now. Given that the PS3 doesn't seem to have a Gears-level title coming out in the next 6 months, and Sony stubbornly refuses to lower the price, my guess is that the PS3's sales will fall off a cliff in launch-aligned comparison.