lol, nice thread, i like watching these threads, always fire in it, lil or biggy...

from handheld to console, real nice...

if u wan hardcore graphic gaming, go psp.
if u wan cute game n more cute n original(cant get from other console)games, go fer ndsl.
if u wanna show to ur fren, definitely go fer psp.
if u are imbaressed by poking a toy in the train, go fer psp.
if u are sick of the size n weight, go fer nds.
if u wanna dengar song, for ur information, they are both capable of doing that, except u hav to buy a catridge fer nds to do that.
if u wanna sit in the toilet n play games, and u are RICH(a must), get both!!!

those are early stages answer...