Who faster Wi-Fi or EDGE on iPhone?

The forum iPhoner asked "What is the maximum speed of receiving data over Wi-Fi in the iPhone? "This experimental data.

Dan : iPhone and 9.4 Mb file.
Do : download speed compared to WiFi and EDGE.
As a result, the test proved that over EDGE file skachalsya 15 minutes 41 seconds, and through WiFi-1 minute 11 seconds, which corresponds to the speed at 10.2 Kb / s and 135.6 Kb / s respectively.

And what's GPRS? Speed 2.7 Kb / s to download the file you will take hours.