I'm using Sugar CE 6.02.
I think that opening a window popup for selecting related filed value (ie assigned_to or account_id in an editview contact record)... it's really time consuming.
Only once, when composing a quick email, sugarcrm uses an inline ajax page.

I begun to check how I'll manage to change the open_popup javascript definition (in sugar_3.js) but if anyone has already done this job or have a better idea to do it, it will be grateful.

Franck