I am interested in buying a sony vaio z series laptop. But I found out that it was already released in january 2010 and doesnt have quad core cpus available. I guess there is a product update due in 2011? Has anyone knowledge of how the product cycles are with sony laptops? E. g. I know that apple updates its macbook pro series somewhat every 9 - 12 months. Is this around the same with sony?

I am also wondering if the ssd drives sony uses are any good, but that could be another question...