I was able to view a cricket match on my computer without any login prompts. When I tried my Watch ESPN app on my iphone it wont work because it doesnt list my provider. From espn:
Cablevision internet subscribers now have access to ESPN3 content from a computer, but it is not available on the WatchESPN mobile application. Please note, if you are a Cablevision video subscriber with ESPN channels, you will have access to WatchESPN channels on the desktop and the mobile application soon.