Xen Summit North America 2010 Date Proposals?

Xen Community:
I am working with AMD who plans to host the 2010 Xen Summit North America event next year in April. We are currently looking for days to schedule the event and I would like feedback from anyone who is aware of other industry events in April. My goal is to not overlap with any other event that Xen community members would attend. Please let me know good and bad dates via email or comments on this posting.