While I am happy with 2D service most of the time, I just noticed from this Herald article that 2D data roaming charges are probably the most expensive of all the carriers
TELECOM
Local: prices start at 2c/MB
Australia: $1/MB*
United Kingdom: $1/MB*
United States: $1/MB*
*$8/MB for first 12.5MB, remaining 87.5MB free.
VODAFONE
Local: prices start at 1.7c/MB
Australia: $5/MB
United Kingdom: $10/MB
United States: $10/MB
2DEGREES
Local: prices start at 1.2c/MB
Australia: $30/MB
United Kingdom: $30/MB
United States: $30/MB
Just look at Oz roaming on 2D vs VF or US roaming even. And Telecom has them all beat.
And I read somewhere on the 2D site that they haven't yet gotten international SMS to work from Verizon in the US yet which is a major omission given that Verizon are the largest or second largest cellphone carrier in the US.
So 2D is great in NZ but if you are roaming or need international connectivity, it seems to be a poor third.
I will be in the US over Xmas but I won't be roaming on 2D. I have already purchaed a GoPhone AT&T SIM card which offers US$2/day for unlimited calls and texts (domestically). And even though I will only be there for about 17 days I might add 100MB data for US$20. That's way better than any of the roaming plans.