I'm going to England. I know that I won't be able to use the Bionic for phone calls or cellular data. Will I be able to access the internet via the WiFi? Is there any specific way I need to configure the phone to do so?
I'm in the UK and all over Europe all the time. In fact, I just got back last night and to answer your question, here is what I do and it will work for you as well. You can charge your phone on the plane depending on where you are sitting. Make sure you have a strong charge as I do not recommend a converter. I have had my bionic work for as long as 4 days and when I come back, I still have 41% ish remaining. I never turn it off while I'm there because it uses a lot of battery power to turn on and start up.
I select airplane mode as soon as I get on the plane and I turn data off. I leave it this way until I am back in the US again. I turn WiFi off and on depending on where I am. If you are staying at a hotel, it is probably going to be free. McDonalds also has free Wifi but you just have to provide a phone number.
A program that I use and it works great on the bionic is VIBER from the apps store. It allows for FREE phone calls and FREE text messages as long as you have a Wifi connections (data works also if in the US). Therefore, as long as I have a WiFi connection, my bionic works as advertised.
Oh...London Heathrow and most airports over there offer FREE WiFi at the airport for 30 minutes.