1) Linux (Debian if you really care) because I find it's much more productive, and has all the tools I need readily available.
2) As many as possible, but initially I'm thinking I'll start with Linux, because Linux users are more likely to buy stuff (giving me a higher conversion rate), then OS X because they have the second highest conversion rate, and ultimately Windows, (hopefully by then I can afford to hire someone to do that support thing).
2) As many as possible, but initially I'm thinking I'll start with Linux, because Linux users are more likely to buy stuff (giving me a higher conversion rate), then OS X because they have the second highest conversion rate, and ultimately Windows, (hopefully by then I can afford to hire someone to do that support thing).