Word has come from Sony that more than one million units of the recently launched PSP Slim and Lite have now been shipped in Japan.

This comes just two months after the model's launch in Japan, back on September 20th. The Slim and Lite also beat the original PSP to the one million mark over there, taking two fewer weeks than its predecessor.

The launch of the Slim and Lite in Japan has given the PSP a good, healthy sales kick, boosting it from figures in the 30,000s over summer to figures consistently around the 60,000 mark in the last few weeks. It has also put the PSP's week-on-week sales much closer to those of the DS. Last week the PSP sold a little over 10,000 fewer units than the DS, compared to gaps upwards of 100,000 over the summer.

Sony's games hardware performance in Japan has been strengthening across the board, of late. SPOnG told you last week that the PS3 beat the Wii in terms of sales for the second week running.