I have one, I'm on the fence with it.
As far as using it as a universal remote there are no "activities". You can customize the buttons, change the layout (somewhat) and map different signals from different remotes to any key.
I'm being lazy, sorry.. buying this tablet exclusively as a universal remote is over the top as it needs to mature. The remote software is "version 1.0" which has me hoping that Sony is going to continue to develop it.
For me, I am trying to decide if this tablet is really what I want for a tablet. I think I am convinced to keep... yet I have a feeling six months down the road I will regret dishing out $500+ dollars for it. I have another week to take it back.
The screen is nice but not as nice as Samsung's Tab 10.1. The shape is good.. personally I think this is the perfect tablet to have if there's kids around. Out of all the tablets I've seen, this one will stand up the best to abuse and with the Playstation options.. entertain the kids.
Reading on it is ok.. but I think I wouldn't want to use it as my main reader. The Sony version of the Android Keyboard is really nice, I like it.
I wish it had a sharper display, it's good but the Samsung is much better. I wish it had tactile feedback and I wish it looked a little less toy like. But overall I think it's a great tablet at this point in time, next year however... it could look like a sad joke with the next wave of hardware and ICS.