My brother, currently running a non-profit abroad, utilizes a similar lifestyle. Everything he owns he can fit into his small backpack.
I learned a ton from him about the benefits of mobility--something I would have thought the lean, mobile startup crowd here on HN would've related to more.
Attachments--to belongings or business plans are a source of strength but are also over emphasized. I admire what you've done and think we could use a lot more of it.
This is a project to help with some personal growth, not really a "I'm better" or "everyone should be like me."
It is just something I did. It taught me amazing things.