Four aspects:
1) Create a meta-payment system standard to enable PayPal et al to be integrated into the browser.
2) Facilitate the ability for the recipient of copies to pay the copyright holder.
3) Facilitate the ability for those interested in the production or development of intellectual work to commission the producer.
4) Provide a completely decentralised means whereby people can publicly declare financial transactions.

It seems to me that Jay is addressing the first aspect.

Flattr (cf Kachingle) and PaySwarm are addressing the 2nd aspect.

I’m addressing the 3rd (along with surprisingly few others).

The (distant) future is the 4th aspect (as per one of my previous comments).