BSkyB is an investor in Roku, and it appears it's leveraged that involvement to develop this new Now TV set-top box. Going on sale today for just £9.99 (including shipping), it brings most of the channels users have gotten used to on Roku in what appears to be a rebranded Roku 2 XS. Notably missing from the list is Netflix, however Now TV (of course), iPlayer, Demand Five, Spotify, Facebook and several Sky channels including the Sky News channel that just launched worldwide are available.
