You can also highlight something in the queue and delete it without disturbing the rest of your choices. Its not a very user friendly queue when you compare it to things like CtP but it works. My biggest gripe is that if you want to queue up 10 infantry, you cant just hold shift and click 10 times because the queue expanding repositions the location of the infantry in the list so you go click .. click .. click.. click and get infantry, infantry, pikeman, archer
The pop up advisor is cool, but there is no way to determine if the city is still running its build queue or the advisor is making it up on the spot now. I'd be happier if it clearly said "you have no more queued items, so I suggest ..."