cell phone
I remember Robert`s cell phone diary, and it makes me feel like I am looking at his railroad. I wonder how his future family and audience would think about his work.
I started to have cell phone since last year, and my flexibility increase a lot. I can always keep inform my situation. I could not afford cell phone because I did not have money nor job. All I could do is borrow phone or dial numbers from 7/11. Cellphone is still less accessible for international poor travelers.