There are some very interesting opinions on HIV in here lol
I think the take home message from that article is that it basically isn't a cure at all, rather than a bit of a lucky side effect. The HIV vaccines that are in trial (/soon to be on trial) at the moment are basically the same as those that have already been trialled and failed. The massive ability of the virus to mutate is the main issue behind this and it is likely that for a long time yet we aren't going to get any closer to finding a vaccine (if a vaccine alike others we already have is at all possible).
The issue of gene therapy mentioned is interesting, but without a change in the current thinking of government, it is unlikely this will ever be properly considered as a treatment. The threat of therapy genes getting into the germ line (cells involved in reproduction) and escaping into the population is enough to make most government scientists turn a funny shade of blue.