Lol I agree pretty much with both of you.
You will always question if it is right to start dating after the loss of a significant other - that is natural.
However, if you are not sure (after questioning yourself) then yes, it's probably too soon.
If you can think - "am I right to be dating someone else? Hmm yes, I want to move forward" then go for it.
When is all said and done, i'm sure your hubby wouldn't want you to be lonesome forever, i'm sure he would want you to be happy.
Moving forward does not mean forgetting. It means accepting and drawing a line under the past.
Nothing in the future will change the past.
If you are comfortable spending time with this guy, then maybe try going on some "light dates" - public places for lunch or something.
And see how you feel? Are you comfortable? Does he respect you, etc?
Then maybe in time you might go on a more intimate date say dinner and a movie, then gradually move on from there.