Whether you want to build the software, run it, grow the community or just learn more about it, there will be content, workshops and design sessions for you to attend at the OpenStack Summit, Oct 15-18 in San Diego. Stick around Friday for the first OpenStack service day, a 1/2 day beach cleanup.
Whether and how to add the concept of incremental images (think redirect-on-write partitions for snapshots) to Glance, and how to create them in Nova.
This feature could enable faster snapshots and reduced storage requirements. But there are some hairy details regarding parent image deletion and where the image chain is reassembled before it can be booted.