Am I the only one irritated by Nextel and other push-to-talk phones? [BEEP BEEP!] Whatchu doin? [BEEP BEEP!] Nuthin.  Whatchu doin? [BEEP BEEP!] I dunno.  Wanna do something? [BEEP BEEP!] I guess so, like what? AUUUGGGGHHH!  Having to listen to…