I do not think the transactions are free even now, it is just that they are spread out across the entire money supply rather than charged only to the participants in the transaction. The cost of the block are the 50 coins added to the money supply, which slightly decreases the value of every other coin.
In most contexts, that would be close enough to count as "free transactions".
We've started a habit of creating periodic Bitcoin threads to confine discussion thereof to those threads and prevent excessive proliferation of Bitcoin topics in the discussion section. Here is a link to the last one, which links the other discussions. Lot's to talk about, and another bounce in Bitcoin's value (up to 33 then down to 24), so share your links and thoughts!