I think this is a fantastic app thats loaded with excellent information and features. However, I would like to see a few features in an upcoming update, some of which I am surprised are not already included in the app:
1. I would like to be able to go back and add to logs/create logs from previous dates. Sometimes one forgets or is unable to enter all data on the date of workout. So far as I can tell, there is no way to add exercise details (under the "quick log" pencil icon) for any given exercise FOR A PREVIOUS DATE, thereby creating a log for an exercise/workout for a date that has already passed.
2. It would be great if one could see a report that merges all cardio-based reports. That is, in addition to showing graphs of distance/time by a certain exercise (e.g. jogging) over a certain date range, it would be helpful to also see a graph for distance/time that incorporates ALL cardio exercises into one plot. This would allow one to track overall cardio performance, which is probably just as useful, if not more so, than simply breaking down the reports by each exercise and having to navigate through them separately.
3. It would be interesting to have a "target" or "goal" line that one could add to the graph reports (the line would be a horizontal line across the graph). This would allow one to set a target distance or time spent on say, cardio (or a specific cardio exercise). Then whilst viewing the report, one would be able to track over time whether or not one has met this target. Additionally, this target line could be quickly and easily changed so that as one meets and exceeds ones goal performance, one could move the target line (presumably higher) and subsequently track ones progress in relation to this new target over time.
4. Within the cardio exercise "quick log" it would be useful to not only have the ability to input time and distance, but also calories burned, as many people use machines or pedometers that calculate this, albeit by crude means. Again, one could then have a report that plots calories burned for each exercise and also by all exercises (see #2).
I use cardio for my examples above, but these suggestions could and should be applied to weight-bearing exercises as well.