In Reply to: friend of mine does it always... posted by travellover on Wednesday, 11. August 2010 at 16:47 Bali Time:
I used mine heaps on wifi in May.
So many restaurants and accommodations have free wifi in Bali it is great. Most of the restaurants and bars that offer wifi will have a little sign up and you just ask them for the password, enter it in and off you go. Its exactly like using your wifi at home except the first time you use their network you have to put in the password and then it will connect automatically next time you go there. I checked emails, facebook etc. I emailed some pics to friends and even paid some bills. Anything you can do here you can do there using wifi.
Sometimes it was a little bit slow but its free so no complaints.
As for using your own data, dont do it! I have an unlocked iPhone and i used a bali sim for phone calls, so there was no chance of me using data. If you are not going to take your sim out then either leave your phone on Airplane mode, or go to settings, general,network and turn OFF mobile data and data roaming so you wont go onto your network accidentally.
Hope this helps.