KeepWiFi

KeepWifi 휴대 전화가 절전 모드에있을 경우에도 와이파이가 켜져 보장합니다.

Annoyed by observing your WiFi connection switches with 2G/3G when your cell phone takes its pause?

This service will keep your Wifi connection on air, even if your phone's screen goes off.

There is also an extended version (KeepWiFi locale) with Locale Plug-In and you can use to it say thank you.