Originally Posted by
chx1975
We have a winner!
http://www.piranha-mobile.com/ let's see: Hungary 16 cents a megabyte, New Zealand 16 cents too ( I pick NZ because it's notoriously expensive among the developed countries -- and I don't have any relatives in Afghanistan

or somesuch -- which I usually travel in). UK some providers only 8 cents. 420 days is the expire period and you can just use data to avoid expiration, no need to make a call. It has VoIP calls for 1 cents a minute. Free international shipping. Initial investment is just 12GBP (<20USD) and that has 5GBP credit.
I just ordered a SIM from them - the 12GPB SIM and added 10GPB additional credit. I'll be in Budapest, Vienna and Prague and don't have enough days in each city to bother with country-specific SIMs and this looked like it would work out well. I don't have it yet but was very impressed by their customer service - an email I sent with questions was responded to almost immediately.