Any word on global account login?

Whub Whubz

As the title says i'm wondering if there is any news on cross device login? (eg; I can log on my phone when i'm out, then log onto steam when i'm at home.)
I started my main account on steam because I was on leave from work, and my phone at the time was from the stone age.. Now that I have a shiny new phone, and that i'm going back to work soon i'm just curious if this feature will be available in the foreseeable future. It would be nice to be able to play on both as I like the steam interface, but having the game in my pocket is pretty handy! If I can't have the best of both worlds can I get my save file from steam on my phone and just play from there from now on?