Wow, that's great article Marc. I'll edit the question to say where I need the feedback. or may be come up with new ones :)

I've a $1000 credits available and will anyone interested to buy? valid for 2 years.

We are team of developers working on couple of projects, you can hire us :)

Recently got a Kindle and it's serving well.

Thanks guys for the response. Forgot to mention that we are not a registered company.
Meanwhile I've found gumroad and it was easy to integrate. Do you suggest Paddle over gumroad? any reasons.

@Jonathan, I'll consider the stripe atlas once I start making some money. This is just an experiment :)