I am travelling to Ubud in Bali mid February to test a live streaming and GPS tracking app for travellers and travel bloggers and will be staying around Ubud. Can anyone please tell me who the best provider is for data streaming in that area and the cost of around 5GB. Also where is the best place to buy the SIM card and will I just need a passport as ID. If there are any expats who would be willing to run a test for us prior to arrival all you would need to do is to download the app and I'm quite willing to pay for a data top up. Its a pretty amazing app and we just need a bit of help to fine tune things.