Tried it. Doesn't work. I'm not getting any internet on my sim.You need to add APN configuration here
Settings >> Tethering & Networks >> Mobile Newtworks>> Access Point Names >> Then press menu key and select Add New APN... On this page, only fill first two lines,, In name, write Mobilink, in APN, write connect.mobilinkworld.com. Now press menu again and select save. You have added APN, just make sure its radio button is selected. REstart your phone and tap on data icon to use 3G (Make sure in network type, you have selected Auto mode OR WCDMA/GSM Auto).