honestly, as someone that pays for an unlimited calling skype subscription, I'm not too fussed about skype bringing in a small subscription fee for skype to skype over 3G, provided that skype to skype PC is still free.

ETA: your post is too vague. you haven't included any of the other speculative information that includes verification that iphone customers need to pay the fee to unlock 3G usage (which is something they haven't previously had available like us N900 users do) and that usage on wifi will still be free. more than likely, this is apple's bidding and insistence as part of their "non-mimicing phone functionality" clause on apps and they'll split the subscription profit 50/50 with apple, or more likely as is apple's habit, 30/70.