anyone know about europe in general where I might be able to find such info?
Check with your wireless provider their GRPS roaming agreements with European countries.
Another way is to find if RIM has an agreement with a provider from the country you plan to travel to. If they do- that provider will support data roaming for any blackberry that uses the same type of wireless network.
How to find? Open www.rim.com
, enter country name in Search field in the right top corner.
can't seem to find much about Poland
I tried Poland: Sep 15, 2004 RIM and Polska Telefonica Cyfrowa to Introduce BlackBerry in Poland
You should be fine.
Also, make sure your blackberry uses GSM/GPRS network and one of the newer models: tri-band or quad-band.
Nextel and CDMA Blackberries will not work in Europe because European countries run GSM networks.
If you have older device which is dual or single band (one or two frequencies) you may not be able to get data and voice in some of European countries if their wireless providers run on different frequency.
Quad-band 8700 or 7100 are safe bet, you should research if you have different model.