This is just a small announcement of the latest updates in EDU. New features:
Now you can view other's solutions if you have solved the problem yourself. I think this can be very useful. When I I was a contest participant, I always looked as others who are more experienced than me wrote this or that code. Often found something interesting and useful.
Now you can view tests for problems in the format, as it is done in the archive in the main section of the website.
Now you can hack other people's solutions if you have solved the problem yourself. And fun and will improve tests of these problems.
More about EDU section you can read in this post.
And what are your wishes for functionality? I remember about filtering the results of practice by friends.
UPD: And for all practice contests I have set a policy of "use time limits scaling policy". This is a recent innovation — you can use it for educational contests, the system will automatically increase the time limit for some languages. Recommended for use only in educational contests.