How about immediate or instant response when valve testing? I've just implemented a new feature, "Imediate Valve Test" which allows instant on/off of single zones with a run time range of 10 to 90 seconds per zone for testing and maintenance. This is implemented on the LawnCheck SmartPhone site:
http://cell.lawncheck.comTo use this you need to have a fairly modern router with some mostly standard features and you have to configure your router. For most this is fairly easy, and it is also secure. I think this is the best alternative for testing because you can access through Wifi or your phone connection to the Internet. In addition you can give the share code to your landscape people and they can perform the tests through their smartphones without accessing your Wifi.
There will be a one time fee for this feature, eventually, but if anyone on the board is interested I'll activate your account for immediate valve test for no charge as beta testers (once activated it's yours, no charge). Test period expires August 1, 2011.
Post here if you are interested.
JIm