I recently took a trip to Singapore and I figured the easiest way to accept and make calls from my mobile phone was to use a MAXroam SIM card because I could forward my mobile phone directly to my MAXroam number before leaving the States. You can also buy a pre-paid SIM, but you have no idea what that number is going to be and you can't control/determine/bill the rates easily like you can with the MAXroam SIM. I will most likely be heading back to Singapore again in the next month or two and was very pleased to hear about the latest MAXroam version 2 launch made at TechCrunch 50 yesterday.
The cool details for this latest service update are contained in the press release and blog post made by Pat Phelan. As you can see you can now get data on the road, USA roaming, and auto top up functionality. I personally am very excited about the data roaming since I went a full week in Singapore with no wireless data. It looks like the data fees will start at Euro 0.005/kb (just over Euro 5 per MB). You can easily see the rates for calls by selecting the countries calling to and from on the Rates calculator page, but I don't see the data rates available yet. I am also not sure if this is 3G data or what speed data this is, but I imagine I will just use it for email and not for web surfing anyways.
I went on my hotel computer connection and topped off a couple of times on my last trip and also am pleased to see the new auto topup functionality. I was on the phone for about 15 minutes to get my flight changed last time and though for sure I was going to run out of minutes so now I won't have to worry about this on my next trip.
The MAXroam site has also been updated to be more user-friendly and looks great.
BTW, over 100,000 people have signed up to use MAXroam and the savings has now topped US$1 million.