Hana features some neat ways to manage your Web-Apps and your relationship to them.
First, since Hana tries to handle links outside of your Web-Apps differently than those within them, Hana includes a feature to specify which other URLs are valid for a Web-App. For instance an email Web-App could have an address of HMail.com and also use mail.foo.com. One of these would be the web app's address, the other would be a Connected URL.
Second, Hana allows you to manage the order in which the tabs appear by simply dragging them about.