I went last December and bought a SIM for $30 for the month. We were getting about 10Mbps down most places, sometimes higher. As pieterhg mentions, there is wi

I went last December and bought a SIM for $30 for the month. We were getting about 10Mbps down most places, sometimes higher. As pieterhg mentions, there is wifi all over Bangkok. I wouldn't suggest spending a ton of time there though - much cooler places if you get out of the big city/tourist destinations. I'll also add the Thai people are absolutely delightful. I've never met such positive happy people.