I’ve been using Skype on my Itouch and downloaded the app onto my Samsung Vibrant 2.1 Galaxy S android only to find my version of the phone is not compatible with it.

I don’t want to take my Itouch just to use for calls as I won’t be making too many and i’m afraid it may get stolen and I don’t want to waste money on buying multiple sims with minutes I won’t be able to use up.

Does anyone know which one of the other free calling services like Skype will work well if i’m moviing around Europe? Will apps like Fring work the same?