Based on the latest Famitsu hardware data...
PSP comparisons: After 201 weeks, PSP is where PS2 was at 148.6 weeks (January 2, 2003), where DS was at 89.8 weeks (August 18, 2006), and where GBA was at 127.7 weeks (August 29, 2003).
X360 comparisons: After 149 weeks, X360 is where GCN was at 14.8 weeks (December 21, 2001), where PS3 was at 17.3 weeks (March 6, 2007), and where Wii was at 3.9 weeks (December 22, 2006).
PS3 comparisons: After 101 weeks, PS3 is where PS2 was at 22.0 weeks (July 29, 2000), where PSP was at 53.6 weeks (December 15, 2005), where GCN was at 102.5 weeks (August 27, 2003), and where Wii was at 24.0 weeks (May 13, 2007).
I'm not sure of the exact date the new PS3 bundle hits, but it looks like there's a real chance for GCN to pass PS3 one last time at 103 weeks apiece before PS3 bumps up again for the holidays and GCN moves onto its shittier post-2003 performance.
Wii comparisons: After 98 weeks, Wii is where GBA was at 90.2 weeks (December 9, 2002), where DS was at 70.5 weeks (April 5, 2006), where PS2 was at 98.8 weeks (January 18, 2002), and where PSP was at 154.5 weeks (November 21, 2007).
Similarly, it looks like Wii and PS2 will cross paths at 99 or 100 weeks apiece, though with PS2 exiting its holiday season and Wii entering it that one won't last much longer than GCN > PS3.
On a longer-looking historical note, though after DS's recent few massive years none of the hardware numbers this year look quite as impressive, things seem more impressive if we compare to what was considered massive success before DS. Though none of this year's systems are doing as well as PS2 in its best calendar year, that there are three doing at least 75% as well is notable.
Based on the latest Media Create hardware numbers...
DS vs PSP: Weekly shares of 15.7 / 84.3, PSP's highest share since... the week DS wasn't out yet. This brings total shares to 69.1 / 30.9. At this week's rates PSP catches up to DS in 100.4 weeks (September 22, 2010). If DS stopped selling and PSP continued at this week's rate, it would catch up in 81.6 weeks (May 14, 2010).
X360 vs PS3: Weekly shares of 62.4 / 37.6 bring total shares to 23.5 / 76.5. At this week's rates X360 catches up to PS3 in 517.9 weeks (September 23, 2018). If PS3 stopped selling and X360 continued at this week's rate, it would catch up in 206.4 weeks (October 3, 2012).
PS3 vs Wii: Weekly shares of 15.4 / 84.6 bring total shares to 25.4 / 74.6. If Wii stopped selling and PS3 continued at this week's rate, it would catch up in 960.6 weeks (March 19, 2027).
Week over week, the system with the new SKU is way up (PSP), the systems awaiting new SKUs are down (DS, PS3), and everything else is slightly up.
Famitsu Software Stuff
Quite a few games popped back up on the top 30 this week having been gone for two weeks. Always noticeable on my end because it's not so easy to identify them based on what the list gives as their previous rank! Monster Hunter Portable 2G, New Super Mario Bros., Wii Play, Animal Crossing Wild World, and the first Taiko no Tatsujin DS.