Do You Prefer iPhone Or G Phone?

An alternative to iPhone (Apple) is finally in the market! Google introduces its new G1 mobile business phone at $179 with 2 years contract from T-mobile. The model features touch screen, slide-out keyboard and a trackball.  

Please take a look at the G1 phone below;


Its touch screen feature is like iPhone however the G phone has an advantage that is with the keyboard which you can slide in and out if you need. So, you prefer which phone?