I bought it for the 360 and I have to say it works pretty flawlessly for me but I've already heard people complain about the controls so if that bothers you you might want to wait for the PC version. Also the PC version is likely to have better graphics.
Ubisfot are not very good at the communication thing, this leads to many people miss interpreting them. It's one of many things the company really needs to work on.
It was communicated fine. In fact most sites gave you the right info, it was just some news sites that speculated just because they saw the description on the Steam Store. Remember that as long as it doesn't come from Ubisoft it's not official.