A big thanks to my lively audience at the London .Net Users group last night who provided excellent feedback. They even led me to some live coding to discover how the TaskEx.WhenAny deals with the tasks which didn't complete first - apparently they are immeadiately disposed of and their results are lost. Let's hope the release documentation for the Async libraries makes this very clear. I also must thank EMC Consulting for providing the facilities and beer, and Adgistics for providing the pizza, ......