Christiangirl: I really can feel your frustration. Chi-chi and I are both non-trads and took the august MCAT. Additionally, we are California residents, so with the UCs, we have faced stiff competition among applicants, felt the blunt end of the rolling admissions factor, and learned that public institutions do not have very organized administrative offices (including their medical admissions offices). We applied to 7 schools in CA, but only got 2 interviews at the same schools--UCSF, the highest ranked, and UCI, the lowest ranked--go figure.
We actually did pretty well on the MCATs (both got 37s) and have solid GPAs (3.7 OA, 3.9 Sci), but it looks like that was simply good enough to put us on the waitlist at most schools. We both interviewed at 14 schools, Chi-Chi has gotten into 1 and I in 3. But the schools we really liked have either rejected us or waitlisted us. And schools we didn't like so much also gave us the boot. Half the schools we applied to (both highly ranked and lower ranked) didn't even want to grant us an interview. I think the late application factor is big and the process is random and mysterious.
Our activities are pretty solid--we have both been published on two papers, have a variety of volunteer experience, and I have even organized a trip to deliver med supplies and volunteer in Haiti. Our interviews have been fine and in some instances, they have said some suprisingly praising comments. Our interviewers have told us that we have very strong recs and some have really praised our essays. Yet our own alma mater (Stanford) which is supposedly known to be good to its own, didn't even grant us interviews. We just don't know what is the glaring flaw in our applications--aside from being a little older, not having a ton of medically-related volunteer activities, and taking the August MCAT.
We are really grateful that we have gotten into one school together, but the process really beat us down. It is hard to put so much effort (extra school years after doing undergrad studies, MCAT, 30-something secondaries, 14 interviews, $$$ on apps/flights/etc.) to get rejected and/or wait-listed to 30-something schools.
I feel a little weird about posting all this information on this site, even if it is semi-anonymous. I know there has been a bit of hostility in the recent past. I am grateful when people are specific about any and all information and if this level of specificity is offensive to anyone, I apologize.
The waitlist is a bit weird for us since we are trying to get into the same school, but from what others have said, it seems likely that it will work out for you in the end.
Any and all advice would be appreciated. Also, those of you non-trads who worked while you studied and got great scores, any advice. Thanks. 
