Thats a good question.
We are negotiating with operators about possible speed options.
Most of the traveler's needs usually covers with 1 Mbbs Internet speed,
However we understand that video on demand and video streaming becomes very popular
and probably replace television in a nearest future. And we do need get ready for it.

Here are some speed estimates for different applications
Skype
For voice calls: 0.1 Mbps download / 0.1 Mbps upload
For video calls: 0.5 Mbps download / 0.5 Mbps upload

Netflix
Recommended broadband connection speed: 1.5 Mbps download

Spotify
Recommended: 0.15 Mbps