It looks like it might also work for programs. I just grabbed the OTA for Vlingo and it pulled it down. I don't know yet if I can get it loaded, but I would imagine that I just need to create an ALX file to go along with it.
I hate using OTA links in case I brick my Berry, and I now I might not have to worry. It did give me some trouble with some of the free games on the mobile.blackberry.com site so it might not work for everything. Than again, I don't even know if they'll load yet.