I am still a dreamer when it comes to 1:1 in my classroom. I pretty much fantasize with the day that begins to happen at my school. In the meantime, I have adopted BYOD (Bring your own device), also known as BYOT (bring your own technology), as a means of using technology effectively in the classroom. This is, of course, not the only way but it has come a long way in my classroom in general. Most of the time, of course, whenever I plan to use devices, I keep in mind that it will require a teamwork activity since not all of my students own a mobile Internet-enabled apparatus.
So, besides this, I have encountered several other situations regarding BYOD that I have to face as "side effects" of the implementation of the policy. If these outweigh the level of engagement you acquire using students´ devices is pretty much up to you and your settings and context.