DD visited WP last month and discovered her cell phone couldn't get a good signal in the dorms. Since the dorms are the only place they're allowed to use their cell phones, she'd like to be sure she has a phone and service provider that will work while she's there. (after beast, of course). she's overdue for a new phone, so this will be a good time to get it right. Any recommendations on phones and/or service providers? thanks.