As a side question: one important feature for nxt is the ability to send funds to a named alias rather than a number. I can see this being implemented in two ways:

1. Purely client side. The client looks up the alias to get the account ID, and then creates a transaction with that account (not alias) as the recipient
2. Within network/API. The client creates a transaction with the alias as the recipient, and the network (i.e. forging node, and other nodes through validation) translates the alias into an account id at time of forging

The second seems to me to be cleaner and preferred. Example: a transaction might take hours to get processed, and what's important is the account that the alias corresponds to at the time it gets processed, not when it is initially shoved into the network.

However, this would require API changes. And so any URI conventions that are adopted by browser extensions/addons would need to be adopted into the API.