Another really interesting session that I attended at Qonnections was on scalability. Here, we looked at using the JMeter tool (an open source product from Apache: http://jakarta.apache.org/jmeter/) to first record a set of interactions and then play them back multiple times with multiple sessions.
This is a really powerful tool. Not just for QlikView but for anyone developing web products.
I can't record all the steps here, but there is a tutorial document and some sample files available from the Community page @ http://community.qlikview.com/groups/qlikview-scalability/forum/default.aspx
Stephen Redmond is CTO of CapricornVentis a QlikView Elite Partner