I think there isn't more enthusiasm because it's not a full solution. It doesn't address the coin spending side too.
The private keys can be imported to several interfaces, can't they?
So I imagine what you do is this:
a) take your bitcoin paper wallet (w1) from which you want to spend some coins
b) create a new paper wallet (w2)
c) import the whole balance to a client/an online wallet
d) keep what you want to spend there and send the remaining balance to your new paper wallet (w2)
Done.
Am I missing something?
What do you mean by 'it's not a full solution'?
It hink this guy has the right idea. i think something liek this could make BTC work flawlessly with POS systems.
You go out shopping you get to the store print out a wallet with a pin code on the private key you go grab what you want you hit the register you scan the private key wipe the funds and print your change on the receipt using the same pin code. then you could use your receipt from foot locker and go spend it at cinnabon or something. and at the end of the day you scan the code with your phone and put it back in your online account your cold storage or whatever.
I don't know if you guys have played slot machines in casinos these days but they print out vouchers that you put in the next machine or you can cash out. it works perfectly with them and if you think about it that is exactly the same market. slots use small transactions and and use vouchers to avoid the overwhelming amount of old style currency.
Personally if this had a couple things to make it into a full POS i would buy dozens of them and sell them to shop owners.
Another perk would be that shop owners could take cash for a purchase and offer their change in BTC. Helps the business since they are more likely to repeat business at a BTC friendly store and helps BTC all together.
Stores don't have to fumble with change you can have a secured form of cash that requires a personal pin and you can purchase things without leaving a footprint like visa.
I think something like this could make the whole idea of BTC viable to the normal public. us geeky folk just don't like watering down technology but its necessary for any technology to be adopted.