It’s great to see Interop continue to rebuild intensity and attendee size from the boom to bust days and back. The floor certainly seems busy, as do many of the sessions we’ve attended and spoken at.Application delivery continues to grow in focus over the last few years, and 2008 is no exception……nearly half of the advertising banners outside the main showfloor entrance are from app delivery vendors. And an entire track of speaking sessions moderated by senior analyst Jim Metzler is around the subjet. This definitely is a topic that has reached mainstream.Cisco has also reached mainstream with its WAAS WAN optimization solution, as the judges for Interop awarded CIsco yesterday.If you’re at Interop while reading this, please come by our booth and say hello. If you’re reading this anywhere else, please post your thoughts on where WAN optimization technology is in your planning or production cycle — we and our readers want to learn from your experience.Cheers from Interop.