I got an idea when I was sitting and translated WordPress to Danish, yesterday.
Couldn't it be great with a Google Translate widget, where the owner of the blog can choose, what the 'from language' shall be.
And then the visiter at the blog, can change the 'to language', to a language they speak.
Example my blog is on Danish and then I could have the widget sitting in my sidebar on my blog, with settings set to Danish in the 'from language' and the visiter could choose example English as the 'to language'.
I know that the translation wouldn't be 100% correct, but then will be almost correct.
I know that you already can go to http://translate.google.com and set the URL address into the text-box and then, it will translate the hole page to the language you choose.
But with this widget, you will be available to translate the page, directly from the blog.
What do you think about this idea?