This could go one of two ways. I've had some employers hire me because of Entrepreneurial things I've done and mentioned on my resume and CV, and I've had other potential employers who either felt threatened by it or thought I wouldn't be committed to their business and would run off and start my own thing.

I think at startups and/or smaller businesses where positions tend to be less structured it's viewed as an asset that you can be a jack of all trades, your comfortable working in a fast paced and changing environment, in a more corporate atmosphere where they want you to do your job and only one specific duty it may not be seen as an asset.

You could potential tailor your CV to include or leave off the Entreprenurial stuff depending on whom you're applying with.

I thought Mary above had an interesting approach, mentioning you worked for the company and leaving off that you were the owner depending upon the position and company you're applying with.