At August 31, 2009, you can join VMware's development engineers at the Moscone Center in San Francisco for the first VMware Technology Exchange Developer Day. This event is dedicated to all the developers building solutions on the VMware platforms and is co-located with VMworld 2009. As a "Developer Day", the primary focus is on helping developers integrate with VMware platforms. VMware will cover developer technologies related to all three of VMware's product areas – datacenter, desktop and cloud – in sessions and corresponding demos. A sample of topics to be covered include vSphere Web Services SDK, APIs for managing and automating guest OS, vCloud API introduction, vApps, vStorage, productivity tools and much more. Packaged into beginner and advanced level sessions, the content will be tailored specifically to help developers learn about VMware's integration APIs, understand implementation best practices and see examples. Corresponding demos will provide further opportunity for training and discussion with VMware engineers in small-group settings.
http://communities.vmware.com/community/developer/techexchange/register
I hope you write a big report on it!