I had never heard of Webmoney, but it was described on here as the PayPal of Russia. I don't yet fully understand Webmoney's system and how Bitcoin plays into it, but would it make business sense for Paypal to do something similar, aside from doing just to stay relevant in the future? If so, is it unreasonable to think they would?
Bitcoin is a competitor to Paypal. If they are smart, they are trying to find ways to destroy Bitcoin and/or develop their own competing virtual currency. Either way, you can bet whatever they do, it is not with Bitcoin's best interest in mind. That would be my guess anyway.
On the flipside, there is a lot of money to be made off people buying and selling Bitcoin. Just depends on risk vs reward. The wrong move could leave Paypal in the same position as the long distance carriers...obsolete.
