This is an amazing trick and i have decided to share it with you. By enabling the turbo mode you can browse up to 3 times faster.
Just go to this link in your Opera Mini:

And experience the speed. This is very helpful because you can not catch the WiFi signals on all places. Turbo mode compresses the data so you have to download less in great speed. I have just downloaded 200 MB in 10 minutes on my Edge enabled mobile today by enabling Opera Turbo mode.