Does anybody else think B&W photography is overused these days?

I think you are correct...it's probably a bit overdone these days. Me personally, I love color because we live in a colorful world. However, I've seen some B&W images these days which are riveting... so... I guess it's like anything else... appropriately applied, it will result in a powerful image.  I've yet to do it myself... color is one of the things that makes me bring out my camera.  What I really think is overdone (and horrible!) these days are images where folks have their picture control setting on 'Vivid'.  It is just so unnatural... my opinion... others would disagree I'm sure...  it's all personal taste of course.