But in many countries, such as Singapore, iTunes stores (music, movies, etc) wasn't available. They still aren't available, but the app store is, once they rolled out iPhones worldwide in a matter of months.
When you go into a product business you may have a different set of legal issues to consider. It's also B2C rather than B2B, which changes the sort of customer service you need and (I'm guessing) dramatically increases your vulnerability to things like chargebacks and stolen credit cards.
Me too. I'm in Singapore and, say what you will about the way the country is governed, but they always make it easy for business to be conducted here. If Google is actually trying here, I'd be very interested to know what difficulties they're experiencing.
I imagine once they had it set up for music, video, etc, adding in support for paid apps was relatively simple.