I'm just going to say one thing, and everyone can ignore it, etc....
I'm for Obama, and am very proud that he and Hillary were the two leading Democratic candidates. It's encouraging.
That being said, I think it might be a little disingenuous to suggest that it is ridiculous for people to have concerns about Obama's experience. Again, I'll be voting for the man, and his experience, or lack thereof, does not keep me from deeply believing that he's our best possible choice right now, for so many different reasons. However, there are 22 year old college grads that get turned down for low level white collar jobs due to lack of experience, and, it's sometimes the right call. So, I mean, if some 25 year old Manager of Consumer Marketing can reject someone for an even more menial marketing gig because the candidate lacks experience, then I think it's fair if someone, anyone, is concerned (and I mean legitimately concerned as a voter, not concerned because they're blind to their conservative cause), about someone stepping into the role of POTUS while lacking what they deem to be the appropriate amount of experience for the job.
So, yeah, I'll be overlooking such a flaw, if flaw it really is, but, I find it hard to casually dismiss such concerns, especially when I hear them from the mouths of objective friends/coworkers/acquaintances/pundits, many of whom are much smarter and much more knowledgeable than I am.