3d wont be coming to psp2, not in the nearest future, at least
cos the only portable 3d without glasses are technology form TI (texas instruments)
and if company as big as Sony make deal with them, it will come out on Wall Street Journal.

and if they include 3d, they need to make touchless interfaces available too, and thats asking way too much costs, cos other phone company also will be getting the OMAP4 chips
the OMAP4 is freaking powerful, 1ghz processing power, full hd, 20mp camera, multi OS compatible, bla bla bla (search for the specs yourself  )
and every effing next gen phone will be getting it

Im guessing what PSP2 is, a self developed super powerful graphic powerhouse that exceeds the OMAP4,
so that consumers will not hesitate, something like "why would I get a PSP2? just get an OMAP4 phone le...more worth for money, can do pretty much everything"
what Im predicting is PSP2 = PS3 portable, or close to PS3 at least.

2011 will come out touchless phones with 3d
yup, touchless, you only touch air to interact with your phone
see the vid



Low down on TI techs

http://multivu.prnewswire.com/mnr/ti/39153/

So why would PSP2 take on the market where the competition is stiff? (3ds is indirectly competing with mobile phones, and it dont even have touchless interface)
so, grand conclusion,
TL,DR: no 3d PSP
on an unrelated note, glassless 3d+maria ozawa=win...