Wow 1.5 GB of internal flash memory is quite a lot for the portable. Considering that there will be also an SD expansion slot we could have up to 5 Gbs. Even more if it supports SDHC...
As for the rest of the specs, it is useful for dick measuring once PSP2 comes out. Because a powerfull system is what matters for market dominance and best games, like we can see in the current gen.