I also sent an e-mail to Lindsey, suggesting that they create a TeX package that can be used in documents now even before there is an official unicode symbol. e.g.
\usepackage[Pander]{bitcoin}
would then let us do
The item costs 3.45 \bitcoin{}
and it would insert the design by Pander.
Or if we prefer the Wareen design -
\usepackage[Wareen]{bitcoin}
The package would use postscript fonts designed by a font designer. It doesn't have to have an actual unicode number to be used in LaTeX.
That would less us play with the different options helping us determine which we prefer. And when there is an official character, the TeX macro package could be updated so that all we have to do is recompile the document and the official character is used.