I just bought a PSP and Final Fanatsy Dissidia with it. The game looks interesting, and it's nice to see all these characters back and fighting one another.

I'm an old time RPG fan and would love to know what is the latest, most exciting RPG in the make for the PSP. What would you recommend?
If your familiar with FFVII and its characters back on the old PS1, I highly recommend

Crisis Core: Final Fantasy VII
Its a must have game, one of the best RPGs and definitely my favorite psp game, it will remind you in the good old rpgs like chrono cross and ff7 but this time with epic graphics..
I was highly addicted when I got it back in 2008 :P

Breath of Fire III PSP
If you never played Breath of Fire III on the PS1

Kingdom Hearts: Birth By Sleep
This one isn't totally an RPG but its a must have Square Enix title
Great graphics and takes 40h+ to beat, like usual RPG games

Im sure I missed alot of great RPGs on the psp, but thats what I really remember right now..
You are an RPG fan then you must be a FF fan too so go to Crisis Core: Final Fantasy VII(On IGN, GameSpot)

Another FF game is Final Fantasy Agito XIII.
The PlayStation Store has some solid PSone titles(like: Castlevania: Symphony of the Night).
But personally you should have waited for the PSP2 because the releases on PSP are decreasing.
Note: Will try to find more games for you.
kareem_nasser wroteBut personally you should have waited for the PSP2 because the releases on PSP are decreasing.
Kareem actually its a good time to own a PSP, right now it has a good library of games and alot of great ones, it'll take the psp2 atleast 3 years to have some good titles, besides there's no official release date yet, even if they announce a specific release, we all know how Sony will end up delaying it..

Edit: I must check that Final Fantasy Agito XIII, looks interesting !!
In addition to what the guys above posted, I'd also suggest you check the following:

Valkyria Chronicles 2
Jeanne D'Arc
Disgaea Afternoon of Darkness
Final Fantasy Tactics: War of the Lions (highly recommended)
Disgaea 2 Dark Hero Days
Shin Megami Tensei: Persona 3 Portable

Enjoy....
Thanks guys, glad to see there are some titles available.
I just spent an hour on Dissidia. Very interesting game. I'll post a review on it soon, once I'll have played a bit more.

About Agito. I haven't had the time to play the real FFXIII, but I'm definitely planning on playing it. Would it spoil the story for me to play Agito first?
It seems that Agito is the same like FFVersusXIII a different story but the same crystallis universe.