Filed under: Developer TUAW is at the Voices that Matter iPhone developers' conference this weekend, talking to iPhone OS developers of all walks of life. All weekend long, devs are here learning about how to code and design better iPhone applications from some of the best minds and artists on the App Store. We've gathered some wisdom from the hallways and discussions here at the conference, and boiled them down into five different design mistakes that developers need to address before moving into the iPad arena. Hit the link below to see what's going wrong with typical iPhone practices when they are applied to iPad development, and how to do it right.