I hope I'm not too late for the Qbit logo competition. I am not a grafix desiner (I'm a coder, web-developer and I'm working on a new Qbit website here), but I would like to suggest this as a CONCEPT. If other grafix designers want to make it better, or make better variations please go ahead.
My rationalle behind this logo:- It must be SIMPLE
- It must be UNIQUE
- It must be INSTANTLY RECOGNISABLE
- It must be so simple that you or anyone should be able to write it with a simple handwriting, like £ or $ or BTC or @ signs.
- It's in the same style as the "@" symbol, which suggests that this currency is related to the Internet age. Qbit is The internet money.
- Colour is RED, because of Feng-Shui ... Red attracts Money. So I would like this coin to have that kind of blessing and good luck from the start.

Take a pen and a piece of paper and try to write it down with a single continuous movement. Look how easy and unique it is.
Do you Like it? Gdt52QoTgrg45ktvb98SSH22sfqVLG1yCV
It's very good. There are many people on he forum today that does not realize there are some rationalles behind logos, GJ.