Hi Chris,
Typically you need a server-side component to pull off a mashup because you're combining content from multiple sources. JavaScript employs a same origin policy to prevent XHR requests to foreign domains so you need to do your mashing on the server. But with this new Google API you can mash feed urls on the client because they're providing the server-side logic for you. Thanks, Google! Mike
Can you explain what you mean by "mashing feeds on the client"? I'm not really well versed in RSS feeds (which is what I'm assuming you mean by "feeds") so I'm interested in what this means.
