From the Nokia Store description:
Whether you are Wearing Gloves OR you are in the kitchen & your hands are wet:
With a double wave over Proximity Sensor you can:
- Answer Incoming Call
- Activate Loudspeaker
- Silence Incoming Call
- Activate Silent Profile
- End Ongoing Call
- Unlock Screen
- Wake up screen
Pocket Mode: Take the mobile out of your pocket & just wave once to Answer Incoming Call
Happily, the developer has also shot a brief demonstration video, proving that the utility works and running through the various options:
As usual with this sort of utility, do be aware that there might be a slight impact on battery life - comments welcome if you fancy Double Waves (Air Gestures) and give it a go.
Personally, there are many occasions when my hands are wet or dirty and I want to interact with my Symbian smartphone - but handling phone calls is only a small part of this. What about options for the wave gesture to advance one music track or skip ahead in a podcatcher? Or to snooze a ringing alarm? Plent for the developer, Mr Alshahawy , to do!