Originally Posted by Brumbek
Good news! The PSP version totally changed leveling up. Your entire party gains equal XP and levels up together. Hence, you can actually fight as a group and not worry about some units not getting XP. And training battles are completely gone. And if a unit dies, you can bequeath their abilities to a new unit if you like.
There are also tons of other MASSIVE improvements to the PSP version. If you only played the original PS1 version ages ago, Tactics Ogre on PSP is worth replaying. They brought together all the original lead developers for the PSP remake/remaster and it really shows.