[moku]

This is a good topic and something that does immediately jump out at the new user.

I use FireFox 2.0 and have imported a number of webpages. The lag does get in the way of effective and efficient use of FireFox and UR.

Normally, drag-and-drop is not expected to be a system-locking heavy operation.

In my opinion, drag-and-drop from an outside application into UR should be a lightweight operation -- something that does a very shallow copy of what is dropped and then releases the source application / cursor.

If a user clicks on an immediately dropped item, this item would be seen in the UI as a tab with particular icon ("under construction"?) and perhaps the word "working..." in parentheses. Something that makes it clear what is happening to the user.

Behind the scenes, worker threads in UR should process what was dropped. As they finish, they can (each) post update messages to the GUI which would in turn update the item header so that the tabs would read normally.

If such a system were implemented, it would make UR and the source applications much more enjoyable to use. And it goes along with the whole "UR light and fast" credo.