I'm not sure I understand this, because it seems too risky.
Are you actually suggesting that people give you graphic examples of their
written signatures? My browser does not support HTML5, so I cannot tell
from the demo if that is what you are asking for.
I cannot imagine anyone trusting their own computer, let alone a remote web
server, with this sort of information.
As an independent software developer, sometimes we need to guess
(predict, gamble on, ...) future trends. We can foresee ...
1) More & more multi-touch screen devices (Windows 7 PCs, Macs,
iPhone, iPad, or something similar from Google,...). These make the
hardware environments mature for WebSign.
2) More & more browsers support HTML5 features in the future, These
make the software environments mature for WebSign. Actually, even
today, I still can use some graphics libraries to make WebSign working
on IEs.
3) You are right, we shouldn't use WebSign on the untrusted public
internet, however we can use it within more secure environments
(intranet, office environments, https, POS, field staff (like UPS,
COD, ...) to collect signatures...)
Think about a very common example, within our office, we almost can
automate all our paper forms through web forms. However, after we fill
out the web forms, we still need to print them out, sign the forms,
the signed forms will be routed to managers, accounting,
personnel, .... for more signatures. These are not just waste papers
and also waste lots of time to collect the signatures manually.
I just hope WebSign can start better ways to handle our daily works
required signatures.