Ask HN: How Much Experience Required Before I Become Self Employed?

I have a dream. I want to work from home and eventually form a partnership with other programmers and have sort of a virtual office where we work on a (one or more) software products, all of us from home.

My question is, how much experience with a 'real' programming job would you expect/want me to have before taking me seriously? At the moment I only have 2 years professional experience, one of those years at one of the biggest tech consultancies in the world (for what it's worth).