You just want a application to view Tip.it without launching Safari? Or are you looking for a mobile version of Tip.it that's completely different from this one? The former would be pretty easy to create, as one would just have to tell Safari to scale the page. Actually, you wouldn't even need an app for the first one. You could just press the + button at the bottom of Safari, and press Add to Home Screen, it adds said page to your homescreen.