From this post on Adam Trachtenburg's blog today:
I am extremely happy that today eBay made all of our API calls completely free of charge. You can get 10,000 API calls a month just by signing up, and when you pass a relatively painless evaluation, we'll increase that limit to 1.5 million calls a day. Now that's a call limit you can be proud of.
He mentions that one of the real barriers between customers using the API full was the pricing. So, they decided to drop that wall - and they're even throwing a party to celebrate. And, of course, what would a huge new offering like this be without a contest to go with it - the eBay Developer Challenge...
