The code I wrote for a company I cofounded and sold was written on a seven inch netbook as well. I wouldn't do it today, but I got to tell ya spending some years writing code on a tiny screen really does make you a better programmer. It's hard to have long lines or excessively long functions when your screen is that small.

I loved that little netbook.

It also saved my bacon when I forgot my decryption strategy for my uploaded bitcoin wallet and I remembered I kept a backup of the wallet on that thing that was under a pile of books in my closet.