I don't think the lone coder is formally dead in all software markets, but he has better opportunities forming a team.
Now he can fight in niche's markets but needs a lot of skills in areas outside programming to promote his products.
If he insist to do it alone will need a lot of creativity, imagination, patience and energy.
I currently use SQUID as a 'personal' proxy. Logging my navigation habits with the referer field to reconstruct the browsing path.
Bookmarks, are not enough.
I don't think the lone coder is formally dead in all software markets, but he has better opportunities forming a team. Now he can fight in niche's markets but needs a lot of skills in areas outside programming to promote his products. If he insist to do it alone will need a lot of creativity, imagination, patience and energy.