If you are still wondering if this is possible...
We have successfully connected to Hyperion Essbase data and created Expense, Headcount, P&L Qlikview Dashboards. We use Star Analytics SIS product and are able to securely extract Essbase Data and display it in QV10. Additionally, we are able to securely automate the extract process for audit purposes. For more info go to: http://nxgenconsulting.com/services_Star.html or http://staranalytics.com/products/star_integration_server.htm
There is a new demo posted on YouTube that demos integrating Essbase data and metadata with QlikView: http://www.youtube.com/watch?v=9vyBSi_mssE
There is also more info here: http://staranalytics.com/solutions/solutions-article/qlikview-for-hyperion/
Just to give you an update - there is a new version of Star Integration Server with enhanced support for QlikView: http://staranalytics.com/public-downloads/sis/documentation/SIS_220.127.116.11_ReleaseNotes.pdf.
You can download a trial of the software at: http://staranalytics.com/products/product-trial-request/?dlv=sis.