Hi ，I'm the R&D leader for Hardbit.
Thanks everyone for your interest in Hardbit.
We've sent 14 Hardbits out .2 already in costomers' hands.
Currently we are busy working on polishing online side software and user's manual.
So please forgive us on slow response of questions.
I think the user's manual will answer most of your questions.
And, the full techincal white paper is already published in Chinese. The English version is only 1/3 of the whole article. We will transate that in a week.
Here I put some core ideas why we develop this product:
1 To make a solution that is best effort for Bitcoin safety for dummies.
(For experienced IT guys, they really don't need hardware wallet.)
(Don't try to teach dummies how to protect their Bitcoins. The more they know, the more possibility they lose their Bitcoins)
so,,convenience is not taking into consideration. Only safety, safety ,safety
So please don't compare convenience with online wallets. Hardbit will perfectly lose.
2 To make a system that online client and offline client can come from different providers. This system is based on a simple communication protocol. (An open-protocol system is much more powerful than an open-source software), this system will help build the offline payment eco system of Democurrency.
3 The hardware must be affordable and portable, and last but not least, not easily recognized as a Bitcoin wallet.