Just wanted to let you guys know some info about the waitlist at UB, in case you didn't know it already...here goes a rather long post I guess.
UB initially waitlists a TON of people. They are pretty frugal about giving out acceptances this early in the game, since they know a bunch of them would be turned down by people who simply view UB as a 'safety school', which seems to be the attitude for many NY residents for the whole SUNY system (why, idk, as the state schools in NY are some of the best out there). So, a lot of people who are waitlisted today will eventually be offered a seat. If you want to go to UB, don't write it off yet.
They will tell you what 1/3 of the waitlist you are in, if you call and ask Mr Rosso. I wouldn't necessarily suggest calling this early, since they just started making the list, but maybe call in Dec or Jan to see where you rank once about half the interviews are over. They interview until the last week in April or so, and keep open seats until the very end (I interviewed on the last day, so no worries if people reading this don't have an invite yet, it very well might be still coming).
The top 1/3 of the list is a pretty safe place to be, since they only waitlist about 200 people total out of the 550-600 they interview, not the numbers quoted above. Many people are rejected post interview, about a third or half or somewhere in between, so don't feel badly if you were rejected after the interview and are reading this. UB turns down many people with high stats, as they are looking for a certain personality type more than someone who will boost their stats.
In summary- many people will be waitlisted. Quite a few of them will eventually be accepted (the last couple years the whole top 1/3 offered a spot by the middle of June, and dipping into the middle 1/3 to varying degrees). They don't accept or look at updates or interest letters, so I wouldn't suggest wasting your time or adding to your anxiety with them. It stinks, but now all you can do is wait if you really want UB. The waitlist started to move in April last year, so it could definitely move before May again this cycle. If you have any questions, feel free to PM me!