The ability to set up recurring goals is an absolute must. The ability to have a weekly or monthly goal that automatically starts over every week/month is extremely motivating.
For example - I'd like to set a goal of running 15 miles every week or 60 miles of biking every week. I should be able to set these to automatically happen each week - without going through the trouble of restablishing a new goal every single week.
The "goal" feature is seriously missing usability without this feature.
