Sorry for the ridiculously late answer on this. I've been out of my mind.
The short answer right now is that when you donate to either podcast, you are in fact donating to Escape Artists, Inc. There's just one account, and the same money goes to pay for Escape Pod stories, Pseudopod stories, and the upcoming PodCastle stories. We do realize that this gets confusing, and it's also made assessing the break-even point of a podcast very difficult. (E.g., Pseudopod spends more money than it gets in donations from its Web link, but that's probably because the same people are donating via the EP link and intending it for both.)
So we're going to change this. I'm working right now on a small Web app that will allow you to choose which podcasts you want to earmark your funds for, so that you can support the specific markets you actively listen to. It'll keep the money separate and help each of the three editors understand how well we're doing. There will be other perks as well -- I've had the opinion for a long time that donors should get something for donating, and we've got a very cool idea for that which I'll be talking about soon. Current donors will get the same perks too, so don't feel obliged to wait for the announcement. >8-> And if it's your intend to donate to both EP and Pseudo, your donation will have that effect.
Does that help? If you want to know anything more, please ask. I see no reason not to be as transparent about this as possible, and I regret not communicating more sooner.