My current advice for people going into Software Entrepreneurship is to create the simplest, easiest to build me-too company of all time - a Software Consultancy / Freelancing company. Nothing is as easy as having a product people want (programmer time) and just selling that directly. You'll learn a lot more about business than you would have learned by trying to start a failed product company, and you'll do it while getting actual money and real networking done.
It can be very difficult to start building projects when you already do freelance work though. It can be very distracting plus it's probably going to be a while before what you could earn from a product gets anywhere near what you are earning as a freelancer.
That said I don't necessarily think your advice is bad, it just depends what you want.
I say this as a freelancer currently working on some products as well.
I hear people talk about this, and oDesk exists, but I never met someone who ever hired a general software freelancer. The closest is MSFT hiring a contractor, but that is just paperwork over flextime/short-term regular employment.
Maybe I just haven't been exposed to the self-selling side of this consulting.
