Steam might work on a portable console
According to SteamDB, Steam might be working on a portable console called SteamPal (codename: Neptune).
Indeed, in the last beta update, SteamPal had been cited multiple times. The fact that it may be a console is based on the wordings "quick access menu", "system settings" and "power menu"
Questioned yesterday about a possible console, Gabe Newel answered that "we wil get a better idea of that by the end of this year".
Even though the news seems very exciting, let's keep in mind that nothing has been officially announced and a lot could change in the coming months.