I chatted with Christian Shormann today after the Sketchflow session (which was awesome) about our memory leak problems. Christian is the Dirctor of Program Management for Expression.  When I described our problem of many Blend3 crashes throughout the day he smiled big with the recognition of someone who had been asked this question many times   The Expression team is aware of this problem and have a fix in place in the Blend 4 Beta. Great news for our team.  We have a very large Enterprise level Sketchflow project.  Looking forward to installing this when I return.  Theres also a patch in place for Blend 3 to fix this if I understood him correctly.  Great news!

Thanks Christian!