I don't think it quite will in the Americas - but I do think it is possible for the USA only.
PSP in the USA:
2005: 3.6m
2006: 3.0m
2007: 3.8m
2008: 3.8m
2009: 2.5m
2010: 1.4m (roughly - given 0.76m through August)
2011: 0.8 - 0.95m ??
I'm inclined to say Sony will cut the PSP price in the USA in 2011...but I don't know how much that matters with the smart phones, cheaper DS, and 3DS available in 2011.
If PSP was to drop below 1m in 2011 there is a real chance it would stop selling just before it reached 20 million units in the USA as it will be reaching 18m in the USA this year. It would also mean PSP would only have topped 1m in the USA for six years - 2005 - 2010.
For comparison major systems in the USA (according to research and estimates I have) have topped 1m units in the following years:
NES: 1986 - 1992 (7 years)
Gen: 1991-1995 (5 years)
SNES: 1991-1996 (6 years)
PS1: 1996-2002 (7 years)
N64: 1996-2001 (6 years)
PS2: 2000 - 2009 (10 years)
Xbox: 2001-2005 (5 years)
GC: 2001 - 2005 (5 years)
DS: 2004 - ?? (at least 7 years)
PSP: 2005 - 2010 (could reach 1m in 2011, but probably 6 years)
Wii: 2006 - ?? (at least 5 years)
PS3 - 2007 - ?? (at least 4 years)
X360 - 2006 - ?? (at least 5 years)
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu








