Les Gainous, a Microsoft Sr. Consultant in the Services-Healthcare & Life Sciences vertical and based in Irvine, reminded me of a tip that comes from the product team and accelerates .NETCF web service calls:

“One thing that may help performance is to use a class global service object and call a simple web service method at app startup time.  This will cause the soap client to reflect over the proxy object (done the first time a method is called on an instance of a web service object).  While, for various reasons -- including device performance, etc -- we will not reach desktop framework speed, this should increase the performance of the important calls for your customer.”