I think the issue is with the teachers not the technology. I'm a governor for two schools, both use iPads and use them properly. If you use the correctly as a teacher you can see what the students are doing, they can't game without you knowing. The way they can support students to learn makes a huge difference, students can ask for help without calling out or showing they need help (some students don't like to show they need support), teachers can track work, progress, homework. Sure this can be done on a laptop too, but that wasn't the argument. The schools are saying the students game, so I blame the teaching skills.
Also, sitting and 'word processing' for a length of time is not really the most effective way of learning. Easy teaching though, give them a subject and let them get on with it, less work for the teacher.
One of the schools I'm a governor for is a special school for the most disabled children in the area. Some have no communication skills (one of them is my son), all have severe learning disabilities, none can learn in any sort of traditional style. The iPads have transformed the way the students can learn and interact, every day we see mini miracles from the children. The best part is so much of it can be instantly saved as evidence through the camera - photo or video - to share with the parents.
Again, none of the students play games (unless they are allowed to, some games are great for learning), and many of them can and do when not in lessons, but they love to learn with the iPads.
I no longer use a laptop, I sold mine nearly 4 years ago now, I had an iPad mini 2 at first and that was a struggle, way too slow, but since upgrading to an Air 2 things have got a lot easier. For nearly 3 years I ran a charity using an iPad, I didn't touch a laptop or desktop computer once, even when things sometimes were a little tricky. I left the charity last year for a quieter life in the country, but still the iPad is my computer, and it does everything I want, it's easy to use, comfortable, flexible, I don't miss a laptop one bit. It's most certainly not a toy, I worked for many hours a day and night on the iPad, they ran POS in the charities coffee shop, they managed accounts, email campaigns, design, marketing, document management, recruitment, memeets hip development, presentations, managed admittance to events, fully managed specialist day care services (children and staffing) through a specialist website we had built that I designed, and iPads ran and still run a toy library for disabled children. We even used iPads connected to Numark mixers to run the charity owned function venue for parties and music nights. But the iPads are most definitely not toys, and going back to a standard laptop device with a hanged screen and keyboard is a huge step backwards in my opinion.