[OFF TOPIC] Free roaming in US, HK, Thailand, Singapore, Puerto Rico - do you know?

[mgoebel]

Did you check Roam4free?

Welcome to Roam4free.ie - The end of sky high roaming charges !

Their website says:

Use in over 115 countries, and receive calls for FREE in over 65 countries. No call set up. Per-minute billing. Up to 90% discount on standard mobile rates. Works on most mobile phones and virtually any network across the globe. Easy to use. Top up from anywhere at anytime - direct from your phone. No line rental. No minimum contract. No call set up. No hidden costs.

Here are the Calls Rates for Brazil:

Receive a call (EUR per min): 0.09
Make a call to most destinations (EUR per min): 0.50

SMS Rates
Receive SMS (EUR per SMS): Free
Send SMS (EUR per SMS): 0.35

Other services Rates
Customer care (EUR per min): 0.45
Add credit: Free
Check balance: Free

I admit that I don't understand well the global roaming. But their boss has an interesting VoIP blog (Roam4free) that I read regularily. So I found the company.