I've just read an article saying that netvibes is an alternative. Apparently they've gotten several hundred new accounts since the Google announcement and will be publishing a blog post in the next week describing how to move your iGoogle dashboard over.
I haven't personally tried the service yet so I can't vouch for it, but I'm going to give it a look. After reading the thread, I'm going to have to take a look at Protopage as well, looks like.