While I'm greatly concerned about honey bees and CCD (I raise bees mostly as an effort to help keep them alive), I don't think it's the apocalypse that it's widely made out to be. Mason bees [1] are phenomenal pollinators, and are easily kept. The site linked below is actually dedicated to getting people to keep mason bees as an insurance policy against increasing honey bee fatalities.
They don't make harvestable honey, so they aren't a 100% replacement for the current model. However, they might be able to fill the gap for commercial pollination. They are also not colony insects in the same sense as honey bees, so it's possible that they might be more resistant to large-scale die-offs.
They don't make harvestable honey, so they aren't a 100% replacement for the current model. However, they might be able to fill the gap for commercial pollination. They are also not colony insects in the same sense as honey bees, so it's possible that they might be more resistant to large-scale die-offs.
[1] http://www.crownbees.com/category/bee-basics-crownbees/bees-...