Username or EmailPassword
From the ridiculously brief and lacking in content article, there was one difference that I found rather interesting:
Apparently, the process of Beagle actually indexing a file is exposed in the UI, so you can stop it if you want.
This worries me slightly, I mean, when will the file be indexed again properly? And it also rather suggests the developers have little faith in the indexing being "unobtrusive."
Personally, I think the indexing should be taken of completely behind the scenes. There's no reason why the user should ever have to no what is going on index-wise, in the same way they shouldn't have to know how the hard drive is handling its cache at a particular moment.
I think he was referring to the firefox plugin. Basically you can stop beagle indexing the weebpages you visit. There is the beagle icon at the bottom right corner of the browser window. You click on it, the icon displays crossed out, beagle now stops indexing the webpages you visit. You click on it again, the icon displays normally again, beagle will start indexing the websites you visited again. Simple and transparent.