Nope - if anything, the gap in numbers sold between the two is widening. However, Sony did manage to suggest that the release last week of figures showing that whereas in June the Wii outsold the PS3 by four to one, and in July by four to one, and in the four weeks to August 26 by three to one, meant Nintendo's lead over its rivals was "narrowing".
A moment's reflection shows that this can't be the case. If every month you keep selling more of something than your rival, your rival cannot ever reduce your lead.
What the writers seem to be trying to describe is not that Nintendo's lead over its rivals is getting smaller, but that the growth of its sales lead is slowing. In other words, it's not accelerating away from the PS3 and overtaking the Xbox360 as fast as it was. However, a lead your opponents can't reduce will still win the race. In fact, the only time that the PS3 held a sales lead over the Wii was in November last year, the month before the Wii's launch.
Meanwhile, figures released last week showed that the Wii was the UK's fastest-selling console ever, reaching 1m sold just 38 weeks after going on sale, compared to the previous record-holder, the PlayStation 2, which took 50 weeks (the Xbox 360 took 60 weeks to hit that target). Guardian Unlimited's June prediction that total Wii sales will overtake the Xbox's well before Christmas looks very safe. Meanwhile, everyone is still wondering when, if ever, the surge in PS3 sales will begin.