Looks like our speculation in the GoW Portable Collection thread was spot on.
Keep in mind that the PSP has been dead in the West for ages, this allows sony to sell these games on a console that is a lot more popular in the West than the PSP and considering how popular monster hunter is in Japan it will definitely boost the PS3's sales over there as well.
This gives me hope that FF Type-0 will eventually be released in HD as well.
There's no doubt in my mind that these ports will be released on the NGP as well, most of the work is done anyway considering how easy ports between the PS3 and the NGP are supposed to be.
The ability to share save files is also something sony wants to implement between games that are available both on the PS3 and NGP. Hm, I wonder if these ports will be playable on both systems form the get go...