Yes, agree with the general sentiment of the comments, seems an obvious one to implement to help people manage their lists more efficiently.
Great suggestion. Sorting by reminder date/time gives people the ability to know which things they need to do next since different tasks on their task list have different lead times for their completion.
For me, auto-sorting, snoozing reminders and sorting by reminder date/time are the big 3 to implement.
Flexible snooze for x minutes, hours, days, or custom date/time setting. Agree, please implement in iOS and OSX.