Nope. X220t is better because you can write on it! I actually did most of my PhD with an X220t folded and mounted to my wall with a little handmade desk in front of it and an extra screen. Worked great.
Also, nothing really beats the ease of sticking a USB stick and copying files over.
Atheros speed is enough to watch HD video from NAS. Even an old ath9k card is enough for that.