at the risk of being redundant, here's my own interview experience, which may help other people...
had it just yesterday, which is relatively late in the process, because 1. the admits committee took awhile to contact me, and 2. when they finally did, they gave me an interviewer I knew personally (classmate from school a few years back). I had to tell admits committee, and they said they'd look for another alum.
the interview was very relaxed indeed, much like most others' experience here. the usual gamut of questions were there: why LBS, why now, etc. what other schools did you apply to?
here's where i think i differed slightly. in between those "standard" questions, he'd ask random questions about the country's economy, my country's current presidential election period, environmental issues, george bush's stand on iraq and afghanistan, MBA grads' roles in precipitating the crisis, etc.
it's a good thing i actually read a lot, and i was able to answer those questions fairly well, with a good deal of cogent analysis. can't imagine what would have happened otherwise... but those kinds of questions don't seem to be standard for other interviewers. anyway, heads up - it could happen, so best brush up on current events, if you aren't abreast of issues.
i felt like i did rather well throughout the interview: it felt like a conversation - though admittedly one sided - than an interview. then again, we will never know until the 25th, i guess. good luck to all of us. nothing to do now but wait until the 25th.
poch