Unless it's changed significantly from the Beta, there are good and bad bits. On the bad, I was not a huge fan of the interface (I'm probably just used to Google), and they have a confusing mix of actual results and paid ads for searches. Results for local searches very 50/50 on their accuracy for me.
I was freaking wowed by it's capability on travel searches however...seemed to be crawling the major travel outlets/airlines, and cam back with pricing and scheduling options...thought that was pretty neat.
Overall, I'd suggest people give it a try...although I'm not switching from Google at this time, I bet this new offering is going to win a lot of folks over.
I'm pretty sure BING stands for: "But It's Not Google!"
Nice one Speechist.
Just read and I quote
Microsoft chose Bing, Ballmer said, because it wanted a short one-syllable name that could "verb up"—in the way people say "Xeroxing" copies or "Googling" search results—and was inoffensive in several languages