What is it about technology?

Have you ever thought to yourself "thers's no way i could leave the house without my cellphone!" and then one morning you wake up late, scramble to get dressed and you're on the highway half way to school or work and you realize "oh no! i forgot my cell phone!"?  Then, from that point on, you're day just keeps getting worse!?  What I want to know is, what is it about our cell phones that make us feel so lost without it?