Well, due to its modular conception and other special features concerning interaction with HTML, purenode can do lot of things.
The blockchain bounty tool is a good example of a nice little web-app that can be useful.
It didn't take long time to build it as the core is functional and can already work through browser.
Purenode can handle all bitcore coins, and be integrated in all kinds of blockchain process needed.
Building bitcoin or altcoins web-apps can be very easy with it.

Concerning the technical part, I think our dev will be much more sharpen than everybody else to explain in details how it works exactly.
I can already tell you that you've never seen that kind of thing