Blackberry Pricing!!!

I have just recently upgraded my Orange contract Treo into a Blackberry 8120. I am based in the UK, and I got a fantastic deal, where I only have to pay an additional �2.50 (on top of monthly line rental) to use the Blackberry BIS.

This �.250 gives me unlimited internet usage and e-mail push. My question is will I be able to use this function when abroad? Or will I incur additional roaming charges?

Also, I have sync my handset with my OWA and it takes 20min to get mail on my phone�.annoying!! any solution?