Using 3G phone as modem

[footsteps]

Recently got vodafone 3G phone and see it can be used as modem to acces broadband via computer
the Cost is somethink like €12 per 15MB, and €2 per MB after that I think .what kinda of usage would this be?
Has anybody used it??

Was going to get Vodafone wireless but wondering now which would be better?

 

[bigjoe_dub]

if you do any type of downloading then get one of the cards. 12mb would be about 3 mp3 songs for example.