What's better?! LG KS360 or LG GB510?

I'm looking for a touch screen, not very expensive. I'm tihnking abou LG ks360, i like cuz it has QWERTY tastaure but not very much touch screen, and now i'm thinkng at lg gb510 or for a phone touch screen and querty but i found expensive..so I can't so..i wanna know who's better?