Based on the latest Famitsu hardware numbers...
PSP comparisons: After 197 weeks, PSP is where PS2 was at 148.0 weeks (December 29, 2002), where DS was at 89.0 weeks (August 13, 2006), and where GBA was at 125.9 weeks (August 15, 2003).
PS3 comparisons: After 97 weeks, PS3 is where PS2 was at 21.5 weeks (July 26, 2000), where PSP was at 53.3 weeks (December 13, 2005), where GCN was at 101.0 weeks (August 16, 2003), and where Wii was at 23.5 weeks (May 9, 2007).
Wii comparisons: After 94 weeks, Wii is where GBA was at 89.5 weeks (December 4, 2002), where DS was at 70.1 weeks (April 2, 2006), where PS2 was at 97.8 weeks (January 11, 2002), and where PSP was at 153.2 weeks (November 12, 2007).
Based on the latest Media Create hardware numbers...
DS vs PSP: Weekly shares of 68.1 / 31.9 bring total shares to 69.4 / 30.6. If DS stopped selling and PSP continued at this week's rate, it would catch up in 457.6 weeks (June 29, 2017).
PS3 vs Wii: Weekly shares of 21.4 / 78.6 bring total shares to 25.5 / 74.5. If Wii stopped selling and PS3 continued at this week's rate, it would catch up in 547.4 weeks (March 20, 2019).
X360 vs PS3: Weekly shares of 62.8 / 37.2 bring total shares to 22.8 / 77.2. At this week's rate X360 catches up to PS3 in 290.1 weeks (April 14, 2014). If PS3 stopped selling and X360 continued at this week's rate, it would catch up in 118.4 weeks (December 29, 2010).
PSP vs Wii: Weekly shares of 48.9 / 51.1 bring total shares to 60.4 / 39.6. At this week's rates Wii catches up to PSP in 2,870.2 weeks (September 25, 2063). If PSP stopped selling and Wii continued at this week's rate, it would catch up in 119.6 weeks (January 7, 2011).
Week over week, things are incredibly flat with the exception of X360 coming down from the height of its bump.
Famitsu Software Pie
An interesting week here for two reasons. One, X360 software outsold the software for each individual Sony system. For another, first-place DS sold ten times as much software as second-place Wii.
Famitsu Software Stuff
Pokémon Platinum starting off much bigger than Emerald.
It also creamed the rest of the top 30 combined.
Mario Kart Wii reaches 1,719,388. Though I don't have pre-PS2 games in the database to create a graphical comparison, the last known Mario Kart 64 total was 1,711,661, so MK Wii has beaten its N64 predecessor, which was also the best-selling N64 game in Japan. It's also worth noting that MK64 had significant legs. As of the end of 1997 (13 months on the market), MK64 was only up to 1.2 million.