Like Yahoo and Google it lets you set up a start page and keep the things you use most often right there. I don’t see that it does anything more than the start page you set up with Yahoo or Google and it doesn’t have an email account for you.
It does have an impressive list of mobile websites. That alone might make it worth the trouble to register and bookmark. And it looks like they are still adding things into the site.
If you don’t already have a custom start page you might consider Tappity as an option besides Google and Yahoo.