•switches, dimmers, weather, relays and screens (uhh, everything I think)
•ssdp (you don't have to enter a IP adress anymore, needs pilight 3.0 or development branch!!)
•notifications (silent, updates when an update comes in. So, you can always monitor your home temperature in the notification centre!)
•Tasker action support, control pilight through Tasker!
• Grid and List.
• Tablet support.
Default behaviour is a running service connected to the deamon at all time. Stopped when leaving your home network, started again when coming home. You'll have a notification showing the last update of the config.
This behaviour can be disabled in the settings but I recommend to keep it on. It hardly takes any battery (try BetterBatteryStats to show this).
Hopefully, if pilight supports doorbels, this can be turned into a notification with sound :) Bit geeky but hey, isn't this pilight?!