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Costs vs costs

techr@... 10th Apr 2008

First of all, I hope that the demonstrator did not do any permanent eye damage staring into a UV light source.

A few things that come to mind:
I'd better use a high tech paper clip or binder, because it wouldn't take to standard paper clips to make this paper bind and even less staples.

The heat source required to "erase" the paper; can this be any more efficient as the fuser in a copier or laser printer.

I print on paper it is usually for notations or comparision, quite often I use a highlighter. Am I out of the norm, or is this something that is going to have it's nitch?
As a side thought to this, how energy will be consumed using light pens?

Will the paper come in white?

I'm waiting for my polarized paper. The technology appeared shortly in electronic book readers, but these are still pricey and don't appear to widely in use. When this technology was introduced, it was going to be so cheap, that store price signs were going to using it.