If you're on a PC/Mac, Basecamp shows you certain links and features when you hover over an item with your mouse. But if you're on a multitouch device like an iPhone or iPad, you can't "hover" over something - you can only tap it.
Along with many of our customers, we're iPhone/iPad users here at 37signals. We wanted to make sure Basecamp worked well on those devices. With that in mind, we just launched a new feature which makes Basecamp more finger friendly for the iPhone and iPad.
Here's a video showing you how it works:
We hope you find this useful. Thanks again for using Basecamp.