Yes you can, you can access it from the menu bar.
Yes, all PSPs can access the PlayStation Network.
Yes, the PSP 3000 has a PSN icon on the XMB. From there it can access the PSN, to purchase and download games.
There's no other way, they need to come from the PlayStation Store.
Psp Go's don't take umd discs like other psp's take, (psp 1000, 2000, or 3000). Psp Go's only take digital games, which you can download on the PlayStation Store via internet
No but you can store your Playstation Store PSP downloads on the PS3
yes psp 3000, like all of the versions have the internet but you'll have to connect the internet on the computer to your psp to get it fully work. You can go to the playstation network or store after you have internet!
YES. On the PSPGo and previous iterations of the PSP (1000, 2000, 3000), using the PlayStation Store is absolutely free. Downloaded content from the store is priced as marked though actually using the store doesnt cost anything.
The PSN is an online service, not a self-contained program that can be run from the PSP, if that's what was meant by 'built-in'. The PSP-3000 has a PSN icon that lets you connect to the PSN and view the online content.
yes there is a playststion store on the 3000 and also the 2000, and the pspgo
The PSP 3000 is a LITTLE slimmer and it automatically comes with PlayStation Network The Software is also higher
A PSP-Go is capable of doing the same functions as a PSP-3000. It has 16-Gb internal memory and a sliding screen. Besides that, it's a smaller, lighter PSP-3000. Also a PSP-GO has no UMD-Slot so all games/movies etc. have to be downloaded from the PlayStation store
The PlayStation store sells only games that are compatible with Sony PlayStation Products and include the PS2, PS3, PSP and PSP Go