Faqden Labs has released Trailhead, a native iPad client for 37Signals’ popular Basecamp project management web app. Designed to provide an attractive and accessible interface to Basecamp, Trailhead allows users to browse through all of their projects on Basecamp and view, edit and add comments to messages and manage to-do lists. Users can create new to-do lists or add items to existing lists directly within the app as well as posting comments…