man, i couldve sworn i posted on this page.
anyways, i think that nintendo, not having a very good launch line up, lost a bit of support, but is now regaining it due to their contract with sqaure, and an impressive lineup of upcoming games. Children of mana, Tales of Tempest, FF3, the list goes on and on. yes, the PSP has better graphics, and yes, it has more franchises to it, but all in all, they are two unlike things.
Look at it this way. Sex and your favorite food are both great things in your life, but you cant cmopare them. The DS and the PSP are both great, theyre both handhelds, but beyond that they are totally built for different purposes.