Requires iOS 5.0 and Siri capability
Siri : as you like it.
MyAssistant is the best tweak to enhance the power of Siri.
With it you can use Activator events, this mean that you can use all the Activator apps with Siri, so you can use all the Activator features with Siri!
With it you can manage System Toggle via Siri (Wifi - 3G - Bluetooth - Location - Airplane mode - Brightness - Volume);
You can add commands to Siri like : Respring - Reboot - Power off - Safe mode - Lock - Unlock - Take a pic - Battery percentage and open apps.
You can also make Siri answers to a question as you want it (for example you can make Siri says "You are awesome" in reply to a custom question that you can set in the Settings.app.
As last feature you can change the Siri background, just picking the new one from Photos.app
If you wan't to enhance you Siri power, now you can!
MyAssistant options in Settings app
See larger Screenshots below