How long until PS3 overtakes the 360 in total sales?

[NJ5]

I'll break my thoughts down into the main regions:

Others:

Judging from this week's Others sales, I'm doubting this (the thread title question) will happen at all. PS3's momentum is slightly bigger than 360's in Others, but that's not even accounting for significant 360 price drops. If the PS3 really takes on here with some more game launches, it might give the PS3 enough momentum to make the PS3 win worldwide, but it's not a given.

Japan:

In terms of hardware sales, PS3's advantage here is really small. And as we all know, PS3's advantage in Japan doesn't translate into software sales, which puts it in a situation similar to the PSP (not contributing to developer interest at all). Some software could change the situation, but it doesn't seem like it will change any time soon. That doesn't bode well for PS3's momentum. To put it bluntly, Japanese developers must be losing interest in the PS3.

USA:

We all know the 360 is most likely going to win here, so not much to discuss... Nothing short of a fantastic turnaround would make the PS3 win here, and the 360 hasn't even had any big price cuts yet.

Conclusion:

Things are not easy for the PS3 in terms of its fight with the 360. It needs many system-sellers, which is not going to happen any time soon, and it needs to hope that MS's price drops don't give the 360 a significant boost soon. Otherwise, the gap will just keep getting bigger and bigger due to the 360's dominance in USA which counters PS3's dominance in Europe and PS3's sales in Japan, which seem to result more from the Blu-Ray player than anything else (in the case of Japan).