Please tell us when we can call something bitcoin 2.0 according to your definition.
Easy, when it is a new and improved version of the actual Bitcoin protocol - as anyone and everyone would expect it to mean. We are using the first version of the Bitcoin protocol (1.0) when the next version of the protocol is released that would be called "Bitcoin 2.0"
I wanted to add something here:
It will be Bitcoin 2.0 when it is an improved version of the Bitcoin 1.0 protocol and my Bitcoin 1.0 BTC can be seamlessly and effortlessly converted (or duplicated) into the new version 2.0 BTC in a fair and transparent way (see Peter's proposal).
We are actually not using Bitcoin 1.0 yet. We are still in Beta. Actually, 0.9.2.1 So if you must be a fucking pedant - then go with that definition. However, to nearly everyone else 'Bitcoin 2.0' simply refers to the general area of an
extended Bitcoin.
WTF do you think 'Web 2.0' means? Why don't you Google that to learn what the
common meaning of the '2.0' extension is?
Your very strict definition is just plain dumb.
Everyone except you understands what 'Web 2.0' and 'Bitcoin 2.0' is intended to mean.
Maybe we should start calling it: "Bitcoin Plus"