Going on a trip

In early january i am going to do a semester abroad trip around europe, i imagine that i am going to continue to talk and text my family and friends . I though about skype but then i realized that i have my nexus s 4g, groove ip , and google voice (to text) also I am defiantly going to have solid wifi connection. 

Will that be as successful as i want to be, i feel like it should work.

also any travel gadget suggestions, (i just sold my touchpad for 250) i already have a nexus s so i dont need any mp3 players or something like that. I was thinking somewhere along the lines of a kindle fire.

thanks

-AB