Honestly, tell me. For what reason would you need to transfer a penny across the ocean?
Being able to send micropayments for viewing content websites will enable the elimination of ads (whether the payment is voluntary or mandatory depends on your preferred balance between "information wants to be free" and "authors want to eat").
Also you could use micropayments to pay for bandwith. I'm sure there are other examples.
However, the Bitcoin block chain is probably the wrong place for these, and another layer will be required.
Not to mention fees are not required. If you really want to send a penny, you can probably afford to wait an hour for a confirmation.
As I understand it, in the future your transaction may never be processed if the fee is too low.