One thing that's interesting there is that toolkits are starting to contain elements to make parallelization easier. Qt specifically now has support via QtConc

One thing that's interesting there is that toolkits are starting to contain elements to make parallelization easier. Qt specifically now has support via QtConcurrent for map and map-reduce patterns that are automatically farmed out to a threadpool the same size as the number of cores and it handles most of the hairy bits of doing threading. I've had to patch it heavily for my own use, but it's still a promising advance. I suspect we'll see more of the same in toolkits in the future.