I'm heading to London tomorrow for a week long business trip and will need to have access to phone, email, and internet on my Blackberry Curve (I'm the Education Manager for Jive Software and will be delivering 4 days worth of training on Clearspace, our collaboration application).

Phone calls are crazy expensive internationally, with rates of $1.29 per minute in the UK.

Fortunately I spend a lot more time on email and the web then I do on the phone, and AT&T has an international data plan that's $64.99 a month for unlimited email and internet. I'll be able to check email, browse the web (tweet on Twitter, etc), and text home occasionally.

When you sign up for the international data plan, it drops your phone calls down to 99 cents a minute. Still not cheap, but if I have to make a business call then Jive will reimburse me.

I'll switch back to the regular Blackberry data plan when I return home, which is only $30 a month.

I also have an Aircard for broadband internet tethering on my laptop, but the data plan for that was something like $130 - too much in my opinion, and the training facility will have high speed internet, as will my hotel.