In editing mode, it would be nice to be able to set example values for the time/battery level/etc to fully test a watch before publishing. For example: i'd like to see what the watch looks like on a tuesday at 8pm with the battery level at 20% saying you've walked 5000 steps. -- You can do parts of this (date/time) but battery level and steps and other values? I like ot do visual representations of battery level so testing that would be helpful.
The ability to use the HR monitor would be great as well, a watch face that changed based on your heart rate? How grand an idea.