Yes! That was one of the functions I wanted when I signed up a couple days ago. One way to do that is to set the due date to "optionally due by" today. Then set the repeat to daily. That will put a question mark in front of 'today' on your list.
1. If you don't do the task it will just go away and appear again tomorrow - it won't appear as overdue.
2. If you do the task it will show as complete and appear again tomorrow. This is good for tasks like exercising that you hope to get to every day.
3. If you want the task to go away after it's completed, then before you check it complete, you should change the due date to "due on" and remove the repeat daily instructions.
To be more clear - it doesn't actually go away and reappear - it just camps out on your task list with '?today' as it's due date. If you have it set to repeat daily, and you check it as done, it will switch to '?tomorrow' once you refresh the screen. This way you don't have to keep re-entering the task each day and you don't have to see it as an overdue task.