if WU and PayPal was smart, they would capitalize on bitcoin and offer BTC insured transfer services. They could charge half their normal rate and still make a tremendous profit.
Good suggestion but this will not happen in the near future.
Bitcoin is still not mainstream, its value is not stable yet (and WU and paypal surely don't like it), sometimes it takes a lot more time to wait for confirmation of the transaction (in one case I had to wait 4-5 hours) etc.
Until we resolve this issues I don't think Paypal or WU will consider to offer BTC as part of their service.