damn, i just figured it out probably...the second platform will be the new PSP coming fall of next year... the PSP-4000, which was more less confirmed to be in production and coming out in 12 months time. On top of that, it is supposed to have a GPU technically and quality-wise on par with the PS2 and first Xbox. Now it makes sense.
So no N900 i guess...But i'd be happy to be wrong.