Buzz, buzz, buzz
There is a genuine problem with 'commercial' bees in several countries. Large numbers of hives are dying off, which means that large numbers of crops will not be pollinated this year.
The blogworld is also buzzing with theories.
Sorting it out:
Many are saying that the huge pileup of electromagnetic waves generated by cell-phones is confusing the bees. This is plausible, because bees do use a magnetic sensor as part of their direction-finding mechanism. Pigeons, which also have internal compasses, are known to get confused when flying past a powerful radio transmitter, or when kept near magnetic emitters like a car's fuel injectors.
Unfortunately, the known locations of the bee problem don't jibe with this theory. America, Brazil, and Europe seem to have the most dead hives. Brazil is not high-tech, so cellphones are unlikely to be the source there; Japan and Korea, which are far more 'celled up' than America, don't have the problem.
Another plausible theory is genetically-modified crops. Since the main purpose of GM is to accentuate a plant's natural pesticides to kill unwanted insects, it wouldn't be surprising if bees were also killed as a side effect.
But wild bees don't seem to be suffering, which knocks down both the cell-phone and the GM crop theories. It also tosses out artificial pesticides and (of course) global warming. Those phenomena would affect every bee, wild or domestic.