I mostly use Asana from my phone as im mostly at job sites / clients homes, not an office.
I noticed some features missing that i think are important.
Add cover image (from mobile app)… You have this on the desktop app but not on the mobile app. This is very important, as i use the image to remember the job site/location.
Pop-up reminders. When you set a due date, the you need to look the app for due dates. I want a feature like iphone reminders where you can have a popup / notification. You should have an option to set when the reminder goes off, so you can set it say a day in advance.
Copy task… I noticed that you cannot copy tasks from your phone app. I use something called templates, where i make a blanket task with a sub-task structure and copy to create a new task with a predefined structure.
(also, please remind dev group that mobile is becoming much more important than desktop. You guys are assuming that people use Asana from an office. However a lot of companies/industries use Asana to collect images and info from the field/job sites. Some dont even use the desktop app, or even have an office. So the mobile app is critical if not more important than the desktop app for them!