Distributed applications are tricky. The internet is a fickle beast that will lost data at will and run counter to many intuitions. Getting distributed applications to run smoothly and performant at scale is particularly difficult.  There isn’t a single "go fast" silver bullet, rather it’s more of an art. At PDC this year you’ll have a great opportunity to learn about the Zen of WCF Performance and Scale at Nicholas Allen‘s lunch session. Enjoy!