I've had a chance to add quite a lot of functionality over the last 2 days.
Firstly, you can now quote and add smileys in your forum posts.
Secondly, you can now see which scanner you are being scanned by, and by clicking on it's link you can see it's recent activity.
You can also request a scanner update by clicking on the refresh button - please note that your score updates automatically in a maximum of 40 mins so unless there's a reason you absolutely HAVE to see your new score please don't click it. And give it a little while after clicking it (2 mins or so) to make the scan. There's a possibility that if there's a load of new gamers to be scanned that it could take longer than this so please don't bombard me with messages to say that it's broken ;o)
Thirdly, there's a new filter on the performance graphs so you can see how people have done in various different date ranges (note you'll get more date options the longer we have been scanning the gamer).
Forthly, and probably best, is a new Compare To Me button against every Gamer on their homepage. This will show you a comparison of scores for all the games either of you have. Clicking on the game on the left will give you a comparison for just that game.