I used to sell a software to supplement the income from my job. I was guranteeing that I'l deliver the software within 3 hours of payments, which meant rushing to home if I was out for dinner, or roll out of the bed and email the software, every time my phone got a text for an incoming payment. Tired of that, I decided to automate the delivery. I wrote a script towards end of 2003, to do that and then an author friend and a couple musician friends made me customize it to automate the delivery of their ebook and mp3, and so in mid 2004 I converted it to a service that anyone could use for selling digital downloads.