Some good customer service from Vodafone. Tweeted them that my data on my Blackberry was not working in Sydney. They tweeted back some options to try, and then had a tech call me, and worked out the problem, and data now working. So much better than dialling a call centre and being on hold.
As data is only $2/MB here temporarily one of the few places where I wanted it on when roaming.
I also learnt something new – what it means if your signal says 3G or GPRS as opposed to 3g or gprs. If in caps it means that data should work over it, and if in lower case it means data won’t work.