Roaming disabled by default in UK G1 models

[scrannel]

Ok, my first post, so forgive me if this question seems obvious. I travel to Europe a lot, so are you saying this roaming issue only happens when I am in a country with a T-Mo network, and is not a concern otherwise? I am expecting my G1 shortly (and have been using a Nokia N80 without incident). But if this is a serious issue, I can cancel my G1 now. So, I need to either, manually select a non T-Mobile network or disable data pinging?

Thanks