HTC’s Sense UI seems pretty rock-solid to me, even when it falls into the usual pitfall of tab overflow, e.g., the bottom menu for the Music application, which seems to have 2 options offscreen. However, I’m sure there’s a way to customize that row, so it shouldn’t matter that the views you use the least are initially obscured.

Without your typical left/right arrows around it, it looks like you should be able to scrub that bar and move the selection all the way over to the obscured items as well without having to navigate through all neighbors.

There are many tabbed screens in S60 given its legacy, and while I am not offended by most of S60’s UI today, the fact that navigating tabs was not made more touch-friendly in 5th Edition is one of the few things that does, pardon the saying, rub me the wrong way.