Here are some new web service features that you get with the upgrades:
New Digital Output Pulse Widget - create millisecond or microsecond pulses
New Analog Actions - link the analog input to digital output states, X10, and servo positions
Send Message on Analog Trigger and Reset - you can send an email or SMS on both the trigger value and reset value
You can create thermostats, motion detection, and all kinds of neat projects with these new actions.