At first i thought you had took some regular symbol and did some sort of inside out  logarithmic transformation in a graphics program, but then i got it!

It's an interesting idea, but i think that one works better as a logo than as a symbol, it doesn't look like it would be easy to handwrite, and the details at the top would probably be missed when rendered in smaller sizes...

Btw,

Already present on Unicode:

☺ u+261A
☻ u+261B

㋡ (that's tsu encircled )

The ฿ symbol already has an official Unicode name "THAI CURRENCY SYMBOL BAHT".

Unless bitcoin change its name to "Bahtcoin", we should not mess with other countries currency symbol.

Especially the ฿ symbol is only used exclusively for the Thai Baht now, I am sure they will have a strong attachment and ownership feeling towards this symbol.

If I were Thai, i would not be happy about that.

People using the $ may not have such feelings, because so many other currencies are using the $ symbol.

It takes a long time for Unicode to adopt a new character. Something that is already in Unicode is much more convenient. Once adopted, people all over the world can use it, type it (or at least copy and paste) it immediately.

Bitcoin don't have to have a currency symbol, but a currency is really a logo, an identity. Bitcoin is for the electronic medium. It is international. For example, if shown on a shopping website, people knows straight away that the price shown is in Bitcoin (but not Thai baht!).

Okay, here's a completely random idea for a thread that's already flooded with ideas.  What about using the Chinese character 币 or some stylized variant thereof?

币

It means "currency", and if you look, the right-hand side looks like a "b", the center part like a "T", and the bottom half like a turned "C".  I'm under the impression that a substantial portion of Bitcoin's early adopters are Chinese.

(This being said, my first instinct would be to try to get a double-stroked B identical to the logo into Unicode.  By typography-geek standards, it's sufficiently distinct from the Baht symbol.)

Perfect

i was fiddling around and i found Alt+0223 to = ß
However i like the lowercase b with the @ symbol loop, almost looks like a c and makes me automatically go "bitcoin" in my head where as $ goes "money"

for anyone who's about to post "how hard Gokhan's smybol is to handwrite" write it first, cause i found it fliud and enjoyable when using a pen

Only two minor concerns with Gokhan's "b'at" symbol:
- Because the @ symbol already has many uses, we must make sure our symbol is sufficiently visually distinctive.  The @ in @37.50, for example, already denotes the concept of "unit price".  However, I think might not be a problem, as nobody complains that $ is not visually distinctive from S.
- Since the circle shape is very "fat" compared to most currency symbols, we'd want to be sure to design it in such a way that the typographic layout would be appealing when it is written with digits next to it.  (IMO @37.50 does not look as "good" and "money-like" as $37.50, 37.50 ฿, etc.)

Other than that, I think the symbol is unique, eye-catching, and very good at communicating "bitcoin".

I have to admit, it looks good!  In a Unicode context, it could be thought of as either a "b" with a vertical line through it, or this upside-down: http://en.decodeunicode.org/en/u+204b