You can call tablets 'toys' all that you want. The undeniable truth is that for some of us they are essential business tools. When I'm on vacation or out-of-the-office, I am still contractually obligated to maintain SLAs. Having a tablet with a bluetooth keyboard is far more reasonable when I'm overseas than lugging a laptop around. I'm not writing novels, I'm not writing much code, but I am doing a ton of server maintenance.
Our programmers have recently been porting our business apps for 8" Android tablets for our engineers to use in the field. They're far cheaper to replace than a laptop, they can be locked down by IT, and they give us a nice target to hit development-wise. I've always bristled when people claim that tablets are just toys, they can be quite useful for those with a little imagination.